%{
#include<stdio.h>
%}
 
%%
// Rules for token recognition
[ \t\n]+                  ; // Ignore whitespace, tabs, and newlines
"if"|"else"|"while"|"for" printf("Keyword: %s\n", yytext); // Recognize keywords
[a-zA-Z_][a-zA-Z0-9_]*    printf("Identifier: %s\n", yytext); // Recognize identifiers
[0-9]+                    printf("Number: %s\n", yytext); // Recognize numbers
"+"|"-"|"*"|"/"|"="       printf("Operator: %s\n", yytext); // Recognize operators
.                         printf("Unknown Symbol: %s\n", yytext); // Catch-all for unknown symbols
%%
 
int main() {
    printf("Enter input to analyze:\n");
    yylex(); // Invoke lexical analyzer
    return 0;
}
 

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

aWY=

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