%{
#include <stdio.h>
 
int word_count = 0;
int line_count = 0;
%}
 
%%
[ \t]+               ;       // Ignore spaces and tabs
\n                   { line_count++; }   // Count each newline as a line
[^ \t\n]+            { word_count++; }   // Count sequences of non-space characters as words
%%
 
int main() {
printf("Enter text (Ctrl+D to end input on Linux / Ctrl+Z on Windows):\n");
yylex(); // Start scanning
printf("\nTotal number of lines: %d\n", line_count);
printf("Total number of words: %d\n", word_count);
return 0;
}

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

SW5wdXQgCkhlbGxvIHdvcmxkClRoaXMgaXMgYSBMZXggcHJvZ3JhbQ==

Input 
Hello world
This is a Lex program