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Raghubansh Kumar
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new testcases for strrev() function
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‎ext/standard/tests/strings/strrev_basic.phpt

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--TEST--
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Test strrev() function : basic functionality
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--FILE--
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<?php
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/* Prototype : string strrev(string $str);
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* Description: Reverse a string
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* Source code: ext/standard/string.c
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*/
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echo "*** Testing strrev() : basic functionality ***\n";
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$heredoc = <<<EOD
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Hello, world
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EOD;
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//regular string
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var_dump( strrev("Hello, World") );
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var_dump( strrev('Hello, World') );
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//single character
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var_dump( strrev("H") );
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var_dump( strrev('H') );
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//string containing simalr chars
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var_dump( strrev("HHHHHH") );
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var_dump( strrev("HhhhhH") );
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//string containing escape char
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var_dump( strrev("Hello, World\n") );
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var_dump( strrev('Hello, World\n') );
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//heredoc string
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var_dump( strrev($heredoc) );
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echo "*** Done ***";
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?>
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--EXPECTF--
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*** Testing strrev() : basic functionality ***
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string(12) "dlroW ,olleH"
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string(12) "dlroW ,olleH"
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string(1) "H"
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string(1) "H"
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string(6) "HHHHHH"
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string(6) "HhhhhH"
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string(13) "
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dlroW ,olleH"
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string(14) "n\dlroW ,olleH"
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string(12) "dlrow ,olleH"
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*** Done ***

‎ext/standard/tests/strings/strrev_error.phpt

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--TEST--
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Test strrev() function : error conditions
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--FILE--
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<?php
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/* Prototype : string strrev(string $str);
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* Description: Reverse a string
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* Source code: ext/standard/string.c
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*/
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echo "*** Testing strrev() : error conditions ***\n";
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echo "-- Testing strrev() function with Zero arguments --";
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var_dump( strrev() );
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echo "\n-- Testing strrev() function with more than expected no. of arguments --";
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var_dump( strrev("string", 'extra_arg') );
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echo "*** Done ***";
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?>
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--EXPECTF--
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*** Testing strrev() : error conditions ***
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-- Testing strrev() function with Zero arguments --
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Warning: Wrong parameter count for strrev() in %s on line %d
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NULL
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-- Testing strrev() function with more than expected no. of arguments --
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Warning: Wrong parameter count for strrev() in %s on line %d
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NULL
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*** Done ***

‎ext/standard/tests/strings/strrev_variation1.phpt

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‎ext/standard/tests/strings/strrev_variation2.phpt

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‎ext/standard/tests/strings/strrev_variation3.phpt

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‎ext/standard/tests/strings/strrev_variation4.phpt

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--TEST--
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Test strrev() function : usage variations - unexpected inputs
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--FILE--
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<?php
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/* Prototype : string strrev(string $str);
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* Description: Reverse a string
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* Source code: ext/standard/string.c
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*/
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/* Testing strrev() function with unexpected inputs for 'str' */
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echo "*** Testing strrev() : unexpected inputs for 'str' ***\n";
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//class declaration
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class sample {
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public function __toString(){
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return "object";
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}
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}
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//get the resource
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$resource = fopen(__FILE__, "r");
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//get an unset variable
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$unset_var = 10;
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unset ($unset_var);
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//array of values to iterate over
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$values = array(
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// int data
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0,
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1,
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12345,
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-2345,
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// float data
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10.5,
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-10.5,
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10.5e10,
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10.6E-10,
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.5,
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// array data
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array(),
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array(0),
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array(1),
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array(1, 2),
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array('color' => 'red', 'item' => 'pen'),
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// null data
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NULL,
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null,
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// boolean data
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true,
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false,
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TRUE,
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FALSE,
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// empty data
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"",
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'',
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// object data
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new sample(),
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// resource
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$resource,
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// undefined data
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@$undefined_var,
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// unset data
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@$unset_var
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);
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// loop through each element of the array for str
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$count = 1;
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foreach($values as $value) {
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echo "\n-- Iterator $count --\n";
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var_dump( strrev($value) );
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$count++;
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};
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fclose($resource); //closing the file handle
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echo "*** Done ***";
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?>
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--EXPECTF--
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*** Testing strrev() : unexpected inputs for 'str' ***
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-- Iterator 1 --
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string(1) "0"
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-- Iterator 2 --
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string(1) "1"
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-- Iterator 3 --
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string(5) "54321"
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-- Iterator 4 --
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string(5) "5432-"
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-- Iterator 5 --
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string(4) "5.01"
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-- Iterator 6 --
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string(5) "5.01-"
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-- Iterator 7 --
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string(12) "000000000501"
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-- Iterator 8 --
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string(7) "9-E60.1"
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-- Iterator 9 --
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string(3) "5.0"
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-- Iterator 10 --
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Notice: Array to string conversion in %s on line %d
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string(5) "yarrA"
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-- Iterator 11 --
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Notice: Array to string conversion in %s on line %d
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string(5) "yarrA"
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-- Iterator 12 --
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Notice: Array to string conversion in %s on line %d
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string(5) "yarrA"
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-- Iterator 13 --
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Notice: Array to string conversion in %s on line %d
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string(5) "yarrA"
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-- Iterator 14 --
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Notice: Array to string conversion in %s on line %d
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string(5) "yarrA"
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-- Iterator 15 --
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string(0) ""
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-- Iterator 16 --
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string(0) ""
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-- Iterator 17 --
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string(1) "1"
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-- Iterator 18 --
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string(0) ""
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-- Iterator 19 --
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string(1) "1"
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-- Iterator 20 --
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string(0) ""
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-- Iterator 21 --
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string(0) ""
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-- Iterator 22 --
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string(0) ""
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-- Iterator 23 --
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string(6) "tcejbo"
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-- Iterator 24 --
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string(14) "%d# di ecruoseR"
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-- Iterator 25 --
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string(0) ""
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-- Iterator 26 --
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string(0) ""
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*** Done ***

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