import random
import stdio
import sys
import stdarray

x = int(sys.argv[1])
y = int(sys.argv[2])

perm = stdarray.create1D(y,0)
for i in range(y):
    perm[i] = i

for i in range(x):
    r = random.randrange(i,y)

    temp = perm[r]
    perm[r] = perm[i]
    perm[i] = temp

for i in range(x):
    stdio.write(str(perm[i]) + ' ')

stdio.writeln()