# include <stdio.h>
 
int isPalindrome(char s[]){
    int i, len = 0;
 
 
    while(s[len] != '\0'){
        len++;
    }
 
 
    for(i = 0; i < len / 2; i++){
        if(s[i] != s[len - 1 - i]){
            return 0; 
        }
    }
 
    return 1; // 回文
}
	//関数の中だけを書き換えてください
	//回文になっているとき１を返す
	//回文になっていないとき０を返す
 
//メイン関数は書き換えなくてよいです
int main(){
    char s[100];
    scanf("%s",s);
    printf("%s -> %d\n",s,isPalindrome(s));
    return 0;
}
 

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