#include<bits/stdc++.h>
using namespace std;
int main(){
    string s;
    int n;
    cin>>s;//s[i]<'A'&&s[i]>'Z'
    for(int i=0;i<s.size();i++){
        if(s[i]<='z'&&s[i]>='a'){
            n=122;
             n=n-(int)s[i];
             n=97+n; 
             cout<<(char)n;
      } else{
            if(s[i]<='Z'&&s[i]>='A'){
            n=90; 
             n=n-(int)s[i];
             n=65+n; 
             cout<<(char)n;
        }else{
            cout<<s[i];
        } 
      } 
        
    }
}
/**************************************************************
	Problem: 1133
	User: wuzhijing
	Language: C++
	Result: Accepted
	Time:8 ms
	Memory:2076 kb
****************************************************************/