#include <stdio.h>
 
int isPalindrome(char s[]) {
    int i = 0;
    int c;
    int j;
 
    while (s[i] != '\0') {
        i++;
    }
 
    c = i - 1;  
      for (j = 0; j <= c / 2; j++) {
        if (s[j] != s[c - j]) {
            return 0; 
        }
    }
    return 1;  
                                                     }
 
 //メイン関数は書き換えなくてよいです 
 int main(void) {
    char s[100];
 
    scanf("%99s", s);
    printf("%s -> %d\n", s, isPalindrome(s));
 
    return 0;
}
 
 

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