Contest1225/D.cpp

#include<bits/stdc++.h>
using namespace std;
int main(){
	string s;
	cin >> s;
	for(int i = 0; i < s.size(); i++){
		if(isalpha(s[i])){
			if(islower(s[i])){
				int t = s[i] - 'a' + 1;
				s[i] = 'a' + 26 - t;
			}else{
				int t = s[i] - 'A' + 1;
				s[i] = 'A' + 26 - t;
			}
		}
	}
	cout << s << endl;
	return 0;
}