import sys
while True:
  a=int(input())
  if a==0: break
  ans,name1,name2=[],[],[]
  hogehoge=0
  for i in range(a):
    hoge=map(int,raw_input().split())
    if hoge[0] in name2:
      ww = hoge[1]*hoge[2]
      r = name2.index(hoge[0])
      if len(ans[r]+ww) >= 7: 
        hogehoge+=1
        name1.append(hoge[0])
      else:
        ans[r]+=ww
    else:
      qq = hoge[1]*hoge[2]
      if len(str(qq)) >= 7: 
        hogehoge+=1
        name1.append(hoge[0])
      else: 
        name2.append(hoge[0])
        ans.append(qq)
  if hogehoge == 0: print "NA"
  else: 
    for i in range(len(name1)):
      print name1[i]