#include <bits/stdc++.h>

using namespace std;

// 比較兩數字的大小(因為 a, b, c 有可能大於 long long int 的範圍)
bool compare(string a, string b) {
    if (a.size() != b.size()) return a.size() > b.size();
    return a > b;
}

int main() {
    int S;
    string a, b, c;
    cin >> S;
    while (S--) {
        cin >> a >> b >> c;
        if (compare(a, b)) {
            if (compare(a, c)) cout << a << endl;
            else cout << c << endl;
        } else {
            if (compare(b, c)) cout << b << endl;
            else cout << c << endl;
        }
    }
    return 0;
}