#include <bits/stdc++.h>
using namespace std;
int main(){
    string e;
    int n;
    cin>>e;
    for(int i=0;i<e.size();i++){
        if(e[i]>='A'&&e[i]<='Z') e[i]='Z'-e[i]+'A';
        else if(e[i]>='a'&&e[i]<='z') e[i]='z'-e[i]+'a';
    }
    cout<<e;
    return 0;  
}
/**************************************************************
	Problem: 1133
	User: lijinkai
	Language: C++
	Result: Accepted
	Time:6 ms
	Memory:2076 kb
****************************************************************/