#include<bits/stdc++.h>

using i64 = long long;

void DAOQI() {
    std::string s;
    std::cin >> s;
    int c1 = 0, c2 = 0;
    for (char c: s) {
        if (c == 'T') c1++;
        else c2++;
    }
    std::cout << (c1 > c2 ? "T1" : "DRX") << "\n";
}

signed main() {
    std::ios::sync_with_stdio(false);
    std::cin.tie(nullptr);
    int T = 1;
    //std::cin >> T;
    while (T--) DAOQI();
    return 0;
}