#include <iostream>
#include <cstring>
#include <algorithm>
using namespace std;
int main()
{
char a[110];
fgets(a,110,stdin);
for(auto &c:a)
if(c>='a'&&c<='z')c=(c-'a'+1)%26+'a';
else if(c>='A'&&c<='Z')c=(c-'A'+1)%26+'A';
cout<<a;
return 0;
}