#include <bits/stdc++.h>

using namespace std;

int main()
{
    freopen("input.txt", "r", stdin);
    string s;

    while (getline(cin, s)) {
    for (int i = 0, l = s.size(); i < l; ++i)
    {
        if (('A' <= s[i] && s[i] <= 'M') || ('a' <= s[i] && s[i] <= 'm'))
            s[i] += 13;
        else if (('N' <= s[i] && s[i] <= 'Z') || ('n' <= s[i] && s[i] <= 'z'))
            s[i] -= 13;
    }
    cout << s << '\n';
    }
    return 0;
}