def generatePivots(numOfPlayers):
    pivots = []
    for player in range(numOfPlayers):
        pivots.append(0)
    return pivots

while True:
    players, squares = map(int, raw_input().split())
    if players == 0 and squares == 0:
        break
    pivots = generatePivots(players)
    traps = map(int, raw_input().split())
    numOfRolls = int(raw_input())
    trapped = []
    winner = None
    pivNum = 0
    modValue = len(pivots)
    for R in range(numOfRolls):
        while True:
            if (pivNum + 1) in trapped:
                trapped.remove(pivNum+1)
                pivNum +=1
                pivNum = pivNum % modValue
            else: break
        pivNum = pivNum % modValue
        dice = sum(map(int, raw_input().split()))
        pivots[pivNum] += dice
        if pivots[pivNum] in traps:
            trapped.append(pivNum+1)
        if pivots[pivNum] > squares:
            winner = pivNum + 1
        pivNum += 1
        pivNum = pivNum % modValue
    print(winner)