class Employee():
    def __init__(self,id,p,q):
        self.id = id
        self.total = p*q
    
    def add_total(self,total):
        self.total += total

class Manager():
    def __init__(self):
        self.employees = list()
        self.count = 0
    
    def add(self,e):
        if len(self.employees) == 0:
            self.employees.append(e)
        else:
            if self.employees[-1].id == e.id:
                self.employees[-1].add_total(e.total)
            else:
                self.employees.append(e)
            
    def pprint(self):
        for i,e in enumerate(self.employees):
            if e.total >= 1000000:
                print(e.id)
                self.count+=1
        if self.count == 0:
            print("NA")

def main():
    while(True):
        m = Manager()
        n = int(input())
        if n==0:
            break
        l = list()
        for i in range(n):
            s = list(map(int,input().split()))
            l.append(s)
        l = sorted(l)
        for x in l:
            m.add(Employee(*x))
        m.pprint()
    

if __name__=="__main__":
    main()