#include<stdio.h>
void fun(int n1,n2,int *gcd,int *lcm){
    int itr;
    for(itr =1;itr<=n1&&itr<=n2;itr++)
     if (n1%itr==0&&n2%itr==0){
    *gcd= itr;}
    *lcm = (n1*n2)/ *gcd;
    
}
int main(){
    int num1,num2,gcd,lcm;
    scanf("%d%d",&num1,&num2);
    if(num1<=0||num2<=0){
        printf("Invalid Input");
        return 0 ;
    }
    fun(num1,num2,*gcd,*lcm);
    printf("%d%d",gcd,lcm);
      
}