# include <stdio.h>

int isPalindrome(char s[]){
	int hidari=0; 
    int migi=0;   
    while(s[migi+1]!='\0'){
    	migi++;
}
    while(hidari<migi){
        if(s[hidari]!=s[migi]){
            return 0;
 }
        hidari++;
        migi--; 
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;
}