#include "cstdio"
#include "string"
#include "iostream"
using namespace std;
int main() {
    string str;
    while (getline(cin, str)) {
        for (int i = 0; i < str.size(); ++i) {
            if (str[i] == 'z' || str[i] == 'Z') {
                str[i] -= 25;
            } else if ((str[i] >= 'a' && str[i] <= 'y') || (str[i] >= 'A' &&
                       str[i] <= 'Y')) {
                str[i] = str[i] + 1;
            }
        }
        cout << str << endl;
    }
}