#include<bits/stdc++.h>
using namespace std;
const int N=100;
char a[N];
int main(){
    cin.getline(a,100);
    for(int i=0;i<=strlen(a)-1;i++){
        if(a[i]<='z' && a[i]>='a') a[i]=char('a'+((a[i]-'a'+1)%26));
        else if(a[i]<='Z' && a[i]>='A') a[i]=char('A'+((a[i]-'A')+1)%26);

    }
    cout<<a;
    return 0;
}

#include<bits/stdc++.h>
using namespace std;
const int N=100;
char a[N];
int main(){
    cin.getline(a,100);
    for(int i=0;i<=strlen(a)-1;i++){
        if(a[i]<='y' && a[i]>='a' || a[i]<='Y' && a[i]>='A') a[i]+=1;
        else if(a[i]=='z' || a[i]=='Z') a[i]-=25;

    }
    cout<<a;
    return 0;
}

#include <bits/stdc++.h>
using namespace std;
const int N=90;
char s[N];
int main()
{
	cin.getline(s,N);
	int n=strlen(s);
	for(int i=0;i<=n;i++)
	{
		if(s[i]>='a'&&s[i]<='y'||s[i]>='A'&&s[i]<='Y')
		{
			s[i]=s[i]+1;
		}
		else if(s[i]=='z')
		{
			s[i]='a';
		}
		else if(s[i]=='Z')
		{
			s[i]='A';
		}
	}
	cout<<s;
	return 0;
}

#include<bits/stdc++.h>
using namespace std;
const int N=90;
char s[N];
int main()
{
	cin.getline(s,N);
	int n=strlen(s);
	for(int i=0;i<n;i++)
	{
		if(s[i]>='a'&&s[i]<='y'||s[i]>='A'&&s[i]<='Y')
		{
			s[i]=s[i]+1;
		}
		else if(s[i]=='z')
		{
			s[i]=s[i]-'z'+'a';
		}
		else if(s[i]=='Z')
		{
			s[i]=s[i]-'Z'+'A';
		}
	}
	cout<<s;
	return 0;
}