n, k = map(int,input().split())
if (n-1)%(k+1) == 0:
    a = 0
    print(a, flush=True)
    while True:
        b = int(input())
        if b >= n:
            exit()
        a += k+1
        print(a, flush=True)
else:
    a = n-1-((n-1)//(k+1))*(k+1)
    print(a, flush=True)
    while True:
        b = int(input())
        if b >= n:
            exit()
        a += k+1
        print(a, flush=True)