#include <iostream>
#include <algorithm>
#include <vector>
#include <string>
#include <iomanip>
#include <cmath>
using namespace std;
#define diff(x,y) ((x > y) ? (x - y) : (y - x))

int main() {
	string str;
	cin >> str;
	reverse(str.begin(),str.end());
	for (int i = 0; i < str.size(); i++)
		str[i] += (str[i] > 61) ? -2 : 2;
	cout << str;
	return 0;
}