random随机排列

from random import sample
n,m=map(int,input().split())
arr=range(1,n+1)
A=[]
a=[]
for i in range(1000):
    A.append(sample(arr,m))
for i in A:
    if i not in a:
        a.append(i)
a=sorted(a)
for i in a:print(*i)