#include<stdio.h>
void fun(int n1,int n2,int*gcd,int*1cm){
    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);
return o;
}