#include <iostream>
using namespace std;
int main(){
	string a;
	cin>>a;
	for(int i=0;i<a.size();i++){
		if(a[i]<='Z'&&a[i]>='A'){
			a[i]='Z'-(a[i]-'A');
		}else if(a[i]<='z'&&a[i]>='a'){
			a[i]='z'-(a[i]-'a');	
	} 
	}
	cout<<a;
    return 0;
}
/**************************************************************
	Problem: 1133
	User: panyuchen
	Language: C++
	Result: Accepted
	Time:8 ms
	Memory:2076 kb
****************************************************************/