#include <iostream>
#include <cstring>

using namespace std;

int main(void)
{
    string str;
    getline(cin, str);

    for (int i = 0; i < str.size(); i++) {
        if (str[i] >= 'a' && str[i] <= 'z') {
            if (str[i] == 'z') str[i] = 'a';
            else str[i]++;
        } else if (str[i] >= 'A' && str[i] <= 'Z') {
            if (str[i] == 'Z') str[i] = 'A';
            else str[i]++;
        }
    }

    cout << str << endl;

    return 0;
}