while True:

    data_num = int(input())
    
    if data_num == 0:
        break

    nice_syatiku = 0

    for data_num in range(data_num):

        a,b,c = map(int,input().split())

        Earnings = b * c
        
        if Earnings >= 1000000:
            print(a)
            nice_syatiku += 1

    if nice_syatiku == 0:
        print("NA")
            
       