1562————蓝桥杯算法提高VIP-计算时间

import java.util.Scanner;
public class Main {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        int n = scanner.nextInt();
        while(scanner.hasNext()) {
            int a = scanner.nextInt();
//            if(a==0) {
//                System.out.println("00:00:00");
//                continue;
//  
            int b = a/3600;
            int c = a/60%60;
            int d = a%60;
            System.out.println(String.format("%02d:%02d:%02d",b,c,d));
        }
    }
}