Jinho Tech

단순 구현 문제이다.

li = [int(input()) for _ in range(4)]
R = 0
for i in range(3):
    if li[i+1] > li[i]:
        R = R + 1
    elif li[i+1] < li[i]:
        R = R - 1

if len(set(li)) == 1: 
    print("Fish At Constant Depth")
elif R == 3:
    print("Fish Rising")
elif R == -3:    
    print("Fish Diving")
else:
    print("No Fish")