#include<stdio.h>
void cu(int a,int b,int*gcd,int*lcm);{
    int x=a,y=b;
    while(y!=0){
        int temp=y;
        y=x%y;
        x=temp;
    }
    *gcd=x;
    *lcm(a*b)/(*gcd);
}
int main(){
    int x,y;
    scanf("%d%d",&x,&y);
    if(x<=0||y<=0){
        printf("Invalid input");
        return 0;
    }
    int gcd,lcm;
    cu(x,y,&gcd,&lcm);
    printf("%d%d",gcd,lcm);
    return 0;
}