%{
#include <stdio.h>
int line_count = 0, space_count = 0, tab_count = 0, char_count = 0;
%}
 
%%
\n      { line_count++; }
[ ]     { space_count++; }
\t      { tab_count++; }
.       { char_count++; }
%%
 
int main() {
    printf("Enter input text (Ctrl+D to end on Linux/Mac, Ctrl+Z on Windows):\n");
    yylex();
    printf("\nStatistics:\n");
    printf("Lines: %d\n", line_count);
    printf("Spaces: %d\n", space_count);
    printf("Tabs: %d\n", tab_count);
    printf("Other characters: %d\n", char_count);
    return 0;
}
 
int yywrap() {
    return 1;
}

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