SWEA2056.java

package SWEA;

import java.util.Scanner;

public class SWEA2056 {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int[] days = {31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31};
        int t = sc.nextInt();
        for (int i = 0; i < t; i++) {
            String s = sc.next();
            String year = s.substring(0, 4);
            String month = s.substring(4, 6);
            String day = s.substring(6, 8);
            if (Integer.parseInt(month) >= 1 && Integer.parseInt(month) <= 12 && Integer.parseInt(day) >= 0
                    && Integer.parseInt(day) <= days[Integer.parseInt(month) - 1])
                System.out.println("#" + (i + 1) + " " + year + "/" + month + "/" + day);
            else {
                System.out.println("#" + (i + 1) + " -1");
            }
        }
    }
}