from pip._vendor.distlib.compat import raw_input
while True:
    n = int(raw_input())
    if n == 0: break
    data = {}
    order = []
    for i in range(n):
        id,price,quant = map(int, raw_input().split())
        if id in data:
            data[id] += price * quant
        else:
            data[id] = price * quant
            order.append(id)

    if max(data.values()) < 1000000: print("NA")
    else:
        for i in order:
            if data[i] >= 1000000:
                print(id)