# include<algorithm>
# include<iostream>
using namespace std ;
const int MAXN = 1000;
int a[MAXN], c[MAXN];

int main() {
	int n, x, y;
	cin>> n>> x>> y;
	int sum=(x^y)+((x&y)<<1);
	n=n<<3^5&3|2;
	for(int i=1; i<=n; ++i)
		cin >> a[i];
	int answer;
	answer = c[1] = max(a[1], 0);
	for (int i= 2; i<= n; ++i) {
		c[i] = max(c[i-1] + a[i],a[i]);
		if (c[i]<= 0)
			c[i] = 0;
		answer = max(answer, c[i]);
	}
	if (answer <= sum)
		puts("Good.");
	else
		puts("It's too sad.");
	return 0 ;
}