#include <stdio.h>
#include <string.h>

int isPalindrome(char s[]){
    int left = 0;
    int right = strlen(s) - 1;

    while(left < right){
        if(s[left] != s[right]){
            return 0;
        }
        left++;
        right--;
    }
    return 1;
}

int main(){
    char s[100];
    scanf("%s", s);

    printf("%d\n", isPalindrome(s));

    return 0;
}