a = int(input())
b = 2
c = ""
while b < a:
    if a == 1:
        break
    if a % b == 0:
        c +=str(b)+"*"
        a = a/b
        b = 1
    b+=1
if a ==1:
    c = "1"
else:
    c += str(b)
print(c)

我是sb