Problem:
Sale Result

There is data on sales of your company. Your task is to write a program which identifies good workers.

The program should read a list of data where each item includes the employee ID i, the amount of sales q and the corresponding unit price p. Then, the program should print IDs of employees whose total sales proceeds (i.e. sum of p × q) is greater than or equal to 1,000,000 in the order of inputting. If there is no such employees, the program should print "NA". You can suppose that n < 4000, and each employee has an unique ID. The unit price p is less than or equal to 1,000,000 and the amount of sales q is less than or equal to 100,000.

Input

The input consists of several datasets. The input ends with a line including a single 0. Each dataset consists of:

n (the number of data in the list)
i p q
i p q
:
:
i p q

Output

For each dataset, print a list of employee IDs or a text "NA"

Sample Input

4
1001 2000 520
1002 1800 450
1003 1600 625
1001 200 1220
2
1001 100 3
1005 1000 100
2
2013 5000 100
2013 5000 100
0

Output for the Sample Input

1001
1003
NA
2013

Solution in JavaScript (judge verdict: Accepted)

process.stdin.resume();
process.stdin.setEncoding('utf8');
process.stdin.on('data', function(input){
    var line = input.trim().split("\n");
    var i = 0;
    while(line[i] !== '0')
    {
        var N = parseInt(line[i++].trim());
        {
            var found, res;
            var qualified = [], amount = [];
            for(--N;N>=0;--N){
                var dataset = line[i++].trim().split(" ");
                res = parseInt(dataset[1]) * parseInt(dataset[2]);
                
                for(k=0;k<qualified.length;++k){
                    if(qualified[k] == dataset[0]){
                        amount[k] += res;
                        break;
                    }
                }
                
                if( k >= qualified.length ){
                    qualified.push(dataset[0]);
                    amount.push(res);
                }
            }
            
            found = 0;
            for(k=0;k<qualified.length;++k){
                if( amount[k] >= 1000000 ){
                    console.log(qualified[k]);
                    found = 1;
                }
            }
            if( !found ){
                console.log("NA");
            }
        }
    }
});