python版：错误答案，仅供参考

解题思路:

注意事项:

参考代码:

def if_jolly(sequence):
   n=sequence[0]
   differences=set()
   for i in range(1,n):
       diff=abs(sequence[i]-sequence[i+1])
       differences.add(diff)
   expected_diffs=set(range(1,n))
   if differences==expected_diffs:
       print('Jolly')
   else:
       print('Not jolly')

sequence=list(map(int,input().split()))
if_jolly(sequence)