#include<iostream>
using namespace std;
int main() {
	char a, b, c, d;
	cin >> a >> b >> c >> d;
	if (d == '1') {
		cout << "SURVIVED" << endl;
	}
	else if ((a == '1'&&b == '1') || (a == '1'&&c == '1') || (c == '1'&&b == '1')) {
		cout << "DEAD" << endl;
	}
	else
	{
		cout << "SURVIVED" << endl;
	}
}