#include <bits/stdc++.h>
using namespace std;
const int N=210;
char a[N];
char b[N];
int main()
{
	cin.getline(a,N);
	int n=strlen(a);
	for(int i=0;i<n;i++)
	{
		if(a[i]=='z' || a[i]=='Z')
		{
			b[i]=char(int(a[i])-25);
		}
		else
		{
			if(('a'<=a[i] && a[i]<='z')||('A'<=a[i] && a[i]<='Z'))
			{
				b[i]=char(int(a[i])+1);
			}
			else b[i]=a[i];
		}
	 } 
	 cout<<b;
	 return 0;
}