import java.util.*;

public class P2967 {
    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        if (!in.hasNextLong()) { in.close(); return; }
        long n = in.nextLong();
        boolean neg = n < 0;
        if (neg) n = -n;
        StringBuilder sb = new StringBuilder();
        if (neg) sb.append('-');
        if (n == 1) {
            sb.append('1');
            System.out.println(sb.toString());
            in.close();
            return;
        }
        long p = 2;
        boolean first = true;
        while (n > 1 && p * p <= n) {
            while (n % p == 0) {
                if (!first) sb.append('*');
                sb.append(p);
                first = false;
                n /= p;
            }
            p = (p == 2) ? 3 : (p + 2);
        }
        if (n > 1) {
            if (!first) sb.append('*');
            sb.append(n);
        }
        System.out.println(sb.toString());
        in.close();
    }
}