import java.util.Scanner;

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

        int a = Integer.parseInt(scanner.nextLine());
        int b = Integer.parseInt(scanner.nextLine());
        int c = Integer.parseInt(scanner.nextLine());




        for (int num1 = 2; num1 <= a; num1 += 2) {

            for (int num2 = 2; num2 <= b; num2++) {

                boolean isPrime = num2 == 2 || num2 == 3 || num2 == 5 || num2 == 7;

                for (int num3 = 2; num3 <= c; num3 += 2) {

                    if (isPrime) {
                        System.out.printf("%d %d %d%n", num1, num2, num3);
                    }else {
                        break;
                    }
                    }

                }
            }
        }
    }