#include<iostream>
using namespace std;
int main(){
    string s;
    getline(cin,s);

    for(auto &c:s){
   if(c>='a'&&c<='z')c='a'+(c-'a'+1)%26;
   else if(c>='A'&&c<='Z') c='A'+(c-'A'+1)%26;
   }
    cout<<s;
    return 0;
        //for(auto &c:s)==for(int i=0;s[i];i++)c==s[i];
}