include <bits/stdc++.h>

using namespace std;

int main() {

string a;
getline(cin, a);
int l;
l = a.size();
for (int i = 0; i < l; i++) {
	if (a[i] == 'Z' || a[i] == 'z' )
		a[i] -= 25;
	else if ((a[i] >= 'a' && a[i] <= 'y') || (a[i] >= 'A' && a[i] <= 'Y'))
		a[i] += 1;
	cout << a[i];
}
return 0;

}