#include <bits/stdc++.h>
using namespace std;
 
void solve(int test, string s)
{
    for (int i = 1; i<=s.size(); i++){
        if (test & 1)
            cout << (char)(i & 1 ? toupper(s[i-1]) : tolower(s[i-1]));
        else 
            cout << (char)(i & 1 ? tolower(s[i-1]) : toupper(s[i-1]));
    }
    cout << endl;
}
 
int main()
{
    int t;
    cin >> t;
    string s;
    for(int i = 1; i<=t; ++i){
        cin >> s;
        solve(i, s);
    }
    return 0;
}

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5
sherlock
watson
moriarty
junior
computer