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