while True:
    try:
        N=int(input())
        if N==0:break
        ans=[]
        dic={}
        for i in range(N):
            e,p,q=map(int,input().split())
            if e in dic:dic[e] +=p*q
            else:dic[e]=p*q
        for v,m in dic.items():
            if m>=1000000:ans.append(v)
        if len(ans)==0:ans.append("NA")
        for k in ans:
            print(k)
    except:break
