import sys
N, K = map(int, raw_input().split())
n = N
cur = turn = 0
while n - (K + 1) > 0:
    n -= K + 1
    turn += 1
if turn % 2 != 0:
    print 0
    sys.stdout.flush()
else:
    print n
    cur = n
    sys.stdout.flush()


while 1:
    B = int(raw_input())
    if B >= N: break
    d = B - cur
    cur = min(N - 1, B + (K + 1 - d))
    print cur
    sys.stdout.flush()