# include <stdio.h>
 
int isPalindrome(char s[]){
	//関数の中だけを書き換えてください
	int i=0,j;
	for(j=0;s[j+1]!='\0';j++);
	while(i<=j){
		if(s[i++]!=s[j--]) 
		return 0;
	}
 
	//回文になっているとき１を返す
return 1;
	//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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