# include <stdio.h>//課題３
 
int isPalindrome(char s[]){
	//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
	int i,t[1000];
	int n=0;
	for(i=0;s[i]!='\0';i++);
 
	for(i;i>=0;i=i-1){
		t[n]=s[i-1];
		n++;
	}
	t[n]='\0';
	for(i=0;s[i]==t[i];i++){
		if(s[i]=='\0') return 1;
	}
	return 0;
}
 
//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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