Snowballs

import java.util.Scanner;

public class Snowballs {
    public static void main(String[] args) {
        Scanner scan = new Scanner(System.in);
        int n = Integer.parseInt(scan.nextLine());
        long snowballValue = 0;
        int snow = 0;
        int time = 0;
        int quality = 0;
        for (int i = 0; i < n; i++) {
            int snowballSnow = Integer.parseInt(scan.nextLine());
            int snowballTime = Integer.parseInt(scan.nextLine());
            int snowballQuality = Integer.parseInt(scan.nextLine());
            long divide = (long) Math.pow(snowballSnow / snowballTime, snowballQuality);
            if (divide >= snowballValue) {
                snowballValue = divide;
                snow = snowballSnow;
                time = snowballTime;
                quality = snowballQuality;
            }
        }
        System.out.printf("%d : %d = %d (%d)%n", snow, time, snowballValue, quality);
    }
}