/C06036 - Ma trận đối xứng 2
<Problem>
https://code.ptit.edu.vn/student/question/C06036#define _CRT_SECURE_NO_WARNINGS
#include <stdio.h>
#include <string.h>
#include <stdbool.h>
#include <math.h>
int main() {
char s[100001];
gets(s);
printf("%d", strlen(s) - 1);
return 0;
}