n=int(input())
li=[]
for i in range(1,n+1):
    li.append(i)
from itertools import permutations
for zu in list(permutations(li)):
    for i,num in enumerate(zu):
        if i!=2:
            print('    %d' % num, end='')
        else:
            print('    %d' % num)

求大佬们看看这错哪了，怎么还全是WA啊？QAQ