#include<iostream> #include<cstdio> #include<string> using namespace std; int main(){ string str; getline(cin,str); for(int i=0;i<str.size();++i){ if(str[i]>='A'&&str[i]<='Z'){ str[i]=(str[i]-'A'+1)%26+'A'; } else if(str[i]>='a'&&str[i]<='z'){ str[i]=(str[i]-'a'+1)%26+'a'; } } cout<<str<<endl; return 0; }