#include <bits/stdc++.h>
using namespace std;
int main(){
string s1;
getline(cin,s1);
for(int i=0;i<s1.size();i++){
if(s1[i]>='a'&&s1[i]<'z')s1[i]=s1[i]+1;
else if(s1[i]>='A'&&s1[i]<'Z')s1[i]=s1[i]+1;
else if(s1[i]=='z'||s1[i]=='Z')s1[i]=s1[i]-25;//另外讨论当为特殊字母Z,z时对s1[i]的处理
}
cout<<s1;
return 0;
}