%{
#include <stdio.h>
%}
 
%%
[6-9][0-9]{9} {printf("Valid Mobile Number: %s\n", yytext);}
 
[https:]/|\|[a-zA-Z0-9]+[a-z] {printf("Valid URL: %s\n", yytext);}
 
[a-zA-Z_][a-zA-Z0-9_]* {printf("Valid Identifier: %s\n", yytext);}
 
(0[1-9]|[12][0-9]|3[01])/(0[1-9]|1[0-2])/([0-9]{4}) {printf("Valid Date (dd/mm/yyyy): %s\n", yytext);}
 
([01][0-9]|2[0-3]):[0-5][0-9]:[0-5][0-9] {printf("Valid Time (hh:mm:ss): %s\n", yytext);}
 
 
%%
 
int main() {
    printf("Enter input text:\n");
    yylex();
    return 0;
}

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ODYxOTcxNzE1NQphcHJhbmphbDQ1NUBnbWFpLmNvbQpodHRwcwowNjowOToyMDA1

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apranjal455@gmai.com
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06:09:2005