# include <stdio.h>
 
int isPalindrome(char s[]){
    int i = 0;
    int j = 0;
    while (s[j] != '\0') {
        j++;
                         }
    j--;
    for (; i < j; i++, j--) {
    if (s[i] != s[j]) {
    return 0;
    }
    }
    return 1;
    }
 
	//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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