#include <iostream>
#define DEBUG
using namespace std;
char getChar(const char *keymap,char c,char dir)
{
	for(int i = 0; i < strlen(keymap); i++)
	if(keymap[i] == c)
		return dir == 'R' ? keymap[i-1] : keymap[i+1];
}
int main()
{
	char keymap[] = "qwertyuiopasdfghjkl;zxcvbnm,./";
	char dir;
	cin>>dir;
	char *msg = new char[100];
	cin>>msg;
	for(int i = 0; i < strlen(msg); i++)
		cout<<getChar(keymap,msg[i],dir);
#ifdef DEBUG
	system("pause");
#endif
	delete[] msg;
	return 0;
}