n,r=map(int,input().split())
l=[0]*r
def print_(cur):
    global n,r,l
    if cur==r:
        for i in l:
            print("%3d"%i,end=' ')
        print()
    else:
        a= 1 if not cur else l[cur-1]+1
        for j in range(a,n+1):
            l[cur]=j
            print_(cur+1)

print_(0)