#include <iostream>
#include <cstring>
using namespace std;
int main()
{
char s[101];
cin.getline(s, 105);
int n = strlen(s);
for (int i = 0; i < n && s[i] != '\n'; i ++ )
{
if(s[i] == 'z')
cout << "a";
else if(s[i] == 'Z')
cout << "A";
else if((s[i] >= 'A' && s[i] <= 'Z') || (s[i] >= 'a' && s[i] <= 'z'))
{
s[i] += 1;
cout << s[i];
}
else
cout << s[i];
}
return 0;
}