#include <iostream>
using namespace std;

int main() {
	long long numb, divisor = 2;
	cin >> numb;
	while (divisor*divisor <= numb)
	{
		if (numb%divisor == 0)
		{
			cout << divisor;
			numb = numb / divisor;
			cout << '*';
		}
		else if (divisor == 2) divisor = 3;
		else divisor = divisor + 2;
	}
	cout << numb;
	return 0;
}