Snowballs

import java.util.Scanner;

public class SnowBalls {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);

        int numberOfSnowballs = Integer.parseInt(scanner.nextLine());

        long snowballValue = 0;
        long highestValue = 0;

        int snowballSnowOutput = 0;
        int snowballTimeOutput = 0;
        int snowballQualityOutput = 0;
        for (int i = 1; i <= numberOfSnowballs; i++) {
            int snowballSnow = Integer.parseInt(scanner.nextLine());
            int snowballTime = Integer.parseInt(scanner.nextLine());
            int snowballQuality = Integer.parseInt(scanner.nextLine());


            snowballValue = (long) Math.pow((snowballSnow / snowballTime), snowballQuality);

            if (snowballValue > highestValue){
                highestValue = snowballValue;
                snowballSnowOutput = snowballSnow;
                snowballTimeOutput = snowballTime;
                snowballQualityOutput = snowballQuality;
            }
        }
        System.out.printf("%d : %d = %d (%d)",snowballSnowOutput,snowballTimeOutput,highestValue,snowballQualityOutput);
    }
}