a = ''
c = []
n,r = map(int,input().split())
def pai(a):
    for i in range(1,len(a)):
        if int(a[i - 1]) >= int(a[i]):
            return False
    return True

def dfs(n,r,ch):
    global a,c
    if len(a) == r:
        if pai(a):
            c.append(a)
            return
    if len(a) > r:
        return
    for i in range(ch,n+1):
        a += str(i)
        dfs(n, r, ch + 1)
        a = a[:len(a)-len(str(i)):]

dfs(n,r,1)
for i in c:
    for j in range(len(i)):
        print('  %d'%int(i[j]),end = '')
    print()