#include<iostream>
using namespace std;

string str;

void work()
{
    for(int i=0;i<str.size();i++)
    {
        if(str[i]>='a'&&str[i]<='z')
        {
            int d=str[i]-'a';
            str[i]='a'+(d+1)%26;
        }
        else if(str[i]>='A'&&str[i]<='Z')
        {
            int d=str[i]-'A';
            str[i]='A'+(d+1)%26;
        }
    }
}

int main()
{
    while(getline(cin,str))
    {
        work();
        cout<<str<<endl;
    }
    return 0;
}