#include <stdio.h> 
#include <string.h> 
	char a[100];
 int main()
 {  
	gets(a);
 	int i,len;
	len=strlen(a);
	for (i=0;i<100;i++)
	{
		if (a[i]<='y'&&a[i]>='a')
		{
			a[i]+=1;
		}
		
		else if (a[i]<='Y'&&a[i]>='A') 
		{
			a[i]+=1;
		}
		else if (a[i]=='Z')
		{
			a[i]='A';
		}
		else if (a[i]=='z')
		{
			a[i]='a';
		}
	
	}
	printf ("%s",a);
 }
 
/**************************************************************
	Problem: 1402
	User: admin
	Language: C
	Result: Accepted
	Time:13 ms
	Memory:1036 kb
****************************************************************/