#include<iostream>

using namespace std;

int main() {
	
	string s;
	getline(cin, s);
	
	for (int i = 0; i < s.size(); i ++ ) {
		if (s[i] >= 'A' && s[i] <= 'Z') {
			s[i] = (s[i] - 'A' + 3) % 26 + 'A';
		}
		if (s[i] >= 'a' && s[i] <= 'z') {
			s[i] = (s[i] - 'a' + 3) % 26 + 'a';
		}
		cout << s[i];
	}

	return 0;
}