#inclulde<stdio.h>
void fun(int n1,int 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");
        return 0;
    }
    fun(num1,num2,&gcd,&lcm);
    printf("%d%d",gcd,lcm);
    return 0;
    
}