13. Prime Pairs

package NestedLoopsMoreEx;

import java.util.Scanner;

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

        int firstCouple = Integer.parseInt ( scanner.nextLine () );
        int secondCouple = Integer.parseInt ( scanner.nextLine () );
        int firstEnd = Integer.parseInt ( scanner.nextLine () );
        int secondEnd = Integer.parseInt ( scanner.nextLine () );

        for (int a = firstCouple; a <= firstCouple + firstEnd; a++){
            for (int b = secondCouple; b <= secondCouple + secondEnd; b++){
                if (a % 2 != 0 && a % 3 != 0 && a % 5 != 0 && a % 7 != 0 && b % 2 != 0 && b % 3 != 0&& b % 5 != 0&& b % 7 != 0) {
                    System.out.printf ( "%d%d%n", a, b );
                }
            }
        }
    }
}