dataCount = int(input())
while dataCount > 0:
    employeeSalesList = []
    for _ in range(dataCount):
        dataList = input().split(" ")
        employeeId, price = dataList[0], int(dataList[1]) * int(dataList[2])
        for data in employeeSalesList:
            if data[0] == employeeId:
                data[1] += price
                continue
        employeeSalesList.append([employeeId, price])

    answerList = [data[0] for data in employeeSalesList if data[1] >= 1000000]
    if answerList:
        print("\n".join(map(str, answerList)))
    else:
        print("NA")

    dataCount = int(input())