n=n0=int(input())
if n<4:
    print(n)
else:
    for i in range(2,n0+1):
        for j in range(i,n0+1):
            while n%j==0:
                if n//j!=1:
                    print(j,end='*')
                else:
                    print(j)
                n /= j
            break