import java.util.Scanner;

public class ThreeGroups {

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


        String[] numbers = scanner.nextLine().split(" ");

        int[] numbers2 = new int[numbers.length];

        for (int i = 0 ; i < numbers2.length ; i++) {
            numbers2[i] = Integer.parseInt(numbers[i]);
        }

        for (int k = 0 ; k < numbers2.length ; k++) {
            if (numbers2[k] % 3 == 0) {
                System.out.print(numbers2[k] + " ");
            }
        }
        System.out.println();
        for (int l = 0 ; l < numbers2.length ; l++) {
            if (numbers2[l] % 3 == 1) {
                System.out.print(numbers2[l] + " ");
            }
        }
        System.out.println();
        for (int m = 0 ; m < numbers2.length ; m++) {
            if (numbers2[m] % 3 == 2) {
                System.out.print(numbers2[m] + " ");
            }
        }
    }
}