#include<iostream>
using namespace std;
int main(){
// 1. input
char a ;
cin >> a ;
//2 . prosess
//3.Input
cout << char (a + 1);
}
I2luY2x1ZGU8aW9zdHJlYW0+CnVzaW5nIG5hbWVzcGFjZSBzdGQ7CmludCBtYWluKCl7CgkvLyAxLiBpbnB1dAoJY2hhciBhIDsKCWNpbiA+PiBhIDsKCS8vMiAuIHByb3Nlc3MKCS8vMy5JbnB1dAoJY291dCA8PCBjaGFyIChhICsgMSk7Cn0=