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