#include <bits/stdc++.h>
using namespace std;
void f(string rows[],unordered_map<char, char>& l,unordered_map<char,char>& r) 
{
    for (int i=0;i<3;i++) 
    {
        const string& row=rows[i];
        for (int j=0;j<row.size();++j)
         {
            if (j > 0) 
            {
                r[row[j]]=row[j-1];
            }
            if (j<row.size()-1) 
            {
                l[row[j]]=row[j+1];
            }
        }
    }
}


int main() 
{
    
    string rows[3]= 
    {
        "qwertyuiop",
        "asdfghjkl;",
        "zxcvbnm,./"
    };

    
    unordered_map<char, char> l;
    unordered_map<char, char> r;

    
    f(rows,l,r);

    
    string t;
    char dir;
    cin>>t;
    cin>>dir;

    
    string s;
    for (char c:t) 
    {
        if (dir=='L') 
        {
            s+=l[c];
        } 
        else if (dir=='R') 
        {
            s+=r[c];
        }
    }

    cout<<s<<endl;

    return 0;
}