import sys

l = raw_input().strip().split(" ")
n, k = int(l[0]), int(l[1])

min, max = 1, n
while True:
    mid = (min + max) / 2
    print "query", mid
    resp = raw_input().strip()
    if resp == "broke":
        max = mid - 1
    else:
        min = mid + 1
    if max < min:
        print "answer", mid
        break