//分解质因数
#include<stdio.h>
#include<cmath>
int main()
{
int n;
scanf("%d",&n);
int i = 2;
do
{
while (n % i == 0)
{
printf("%d",i);
n = n / i;
if (n != 1)printf("X");
}
i++;
}
while (n != 1);
}