#include <bits/stdc++.h>
using namespace std;
using ll = long long;
#define pb push_back
#define se second
#define fi first
const int mod = 1e9 + 7;

//#define int long long
ll ksm(ll a, ll b) {
	ll ans = 1;
	while (b) {
		if (b & 1)
			ans = ans * a % mod;
		a = a * a % mod;
		b /= 2;
	}
	return ans;
}

void solve() {
	string s;
	cin >> s;
	int c1 = 0, c2 = 0;
	for (auto x : s) {
		if (x == 'T')
			c2++;
		else
			c1++;
	}
	if (c1 >= c2)
		cout << "DRX\n";
	else
		cout << "T1\n";
}

int main() {
	ios::sync_with_stdio(false);
	cin.tie(0);
	cout.tie(0);
	int t = 1;
	//cin>>t;
	while (t--)
		solve();
	return 0;
}