2609.java

import java.util.*;

public class Main {

 public static void main(String[] args) {

 Scanner sc = new Scanner(System.in);

 int a = sc.nextInt();
 int b = sc.nextInt();

 int gcd1 = gcd_recursive(a,b);
 int gcd2 = gcd_loop(a,b);

 int lcm = (a*b) / gcd1;

 if(gcd1 != gcd2)
 System.exit(-1);

 System.out.println(gcd1);
 System.out.println(lcm);

 }

 public static int gcd_recursive(int a, int b) {
 if(a<b) {
 int temp = a;
 a = b;
 b = temp;
 }


 if(b==0)
 return a;

 return gcd_recursive(b, a%b);
 }

 public static int gcd_loop(int a, int b) {
 if(a<b) {
 int temp = a;
 a = b;
 b = temp;
 }

 while(b != 0) {
 int temp = a%b;
 a = b;
 b = temp;
 }
 return a;
 }

}