Aita

n, diff = [int(i) for i in raw_input().split()]


res = []
ind = 0
prev = -1
while ind < n:
    x = ((ind%2 != 0) * ind/2+1) + ((ind%2 == 0) * (ind/2+n/2))
    if prev != -1 and abs(prev-x)<diff:
        print "QAQ"
        exit()
    res.append(str(x))
    ind += 1
    prev = x

print " ".join(res)

Test 1

Group: 1

Verdict: ACCEPTED

Test 2

Group: 1

Verdict: ACCEPTED

Test 3

Group: 1

Verdict: ACCEPTED

Test 4

Group: 1

Verdict: ACCEPTED

Test 5

Group: 1

Verdict: ACCEPTED

Test 6

Group: 2

Verdict: ACCEPTED

Test 7

Group: 2

Verdict: ACCEPTED

Test 8

Group: 2

Verdict: ACCEPTED

Test 9

Group: 2

Verdict: ACCEPTED

Test 10

Group: 2

Verdict: ACCEPTED

Test 11

Group: 3

Verdict: ACCEPTED

Test 12

Group: 3

Verdict: ACCEPTED

Test 13

Group: 3

Verdict: ACCEPTED

Test 14

Group: 3

Verdict: ACCEPTED

Test 15

Group: 3

Verdict: ACCEPTED