#include <bits/stdc++.h>
using namespace std;
int main() {
	char s;
    unordered_map<char, char> h;
	for (int i = 0; i < 26; i ++ )
		h['a' + i] = 'a' + 25 - i;
	while (cin >> s) cout << h[s];
    return 0;
}