```python3
nums=list(map(int,input().split()))
res=[0 for _ in range(len(nums))]
res[0]=1
res[-1]=1
for i in range(1,len(nums)):
if abs(nums[i-1]-nums[i])<len(nums)-1:
res[abs(nums[i-1]-nums[i])]=1
if 0 not in res:
print('Jolly')
else:
print('Not jolly') @[xiazihao_](/user/1175738)
by lxxxxxkr @ 2024-03-16 20:22:49
@[lxxxxxkr](/user/1297690) 非常感谢
by xiazihao_ @ 2024-04-01 15:05:02
@[xiazihao_](/user/1175738) 我有更好的办法
```python
l=list(map(int,input().split()))
n,d=l[0],[]
del l[0]
for i in range(n-1):
d.append(abs(l[i+1]-l[i]))
if set(d)==set(range(1,n)):
print('Jolly')
else:
print('Not jolly')
```
by hyh0174 @ 2024-04-17 21:21:21