listEnjoy = list(map(int, input().split(" "))) li = [] for i in range(len(listEnjoy) - 1): element = abs(listEnjoy[i] - listEnjoy[i + 1]) li.append(element) flag = True for i in li: if i < len(listEnjoy) - 1: flag = True else: flag = False print("Jolly" if flag else "Not jolly")