while True:
    no = {}
    n = int(input())
    if (n == 0):
        break
    
    for i in range(n):
        datas = map(int, input().split())
        li = list(datas) 
        e = li[0]
        p = li[1]
        q = li[2]

        s = p * q
        if (e not in no):
            no[e] = s
        else:
            no[e] += s

    na = True    
    for k in no.keys():
        if (1000000 <= no[k]):
            print(k)
            na = False
    
    if (na == True):
        print("NA")
    


