Uphill

Write a program that decides whether the given integers are listed in non-decreasing order. A sequence $A_1, A_2, \ldots, A_N$ is non-decreasing when $A_1 \le A_2 \le \cdots \le A_N$ holds.

The first line contains $N$ integers separated by spaces. $1 \le N \le 10^6$, and every integer is between $-10^6$ and $10^6$ inclusive. $N$ itself is not given, so read every number on the line.

Print Good if the integers are in non-decreasing order, and Bad otherwise.