Given an integer number n, return the difference between the product of its digits and the sum of its digits.
Example 1:
Input: n = 234
Output: 15 
Explanation: 
Product of digits = 2 * 3 * 4 = 24 
Sum of digits = 2 + 3 + 4 = 9 
Result = 24 - 9 = 15
Example 2:
Input: n = 4421
Output: 21
Explanation: 
Product of digits = 4 * 4 * 2 * 1 = 32 
Sum of digits = 4 + 4 + 2 + 1 = 11 
Result = 32 - 11 = 21
Constraints:
1 <= n <= 10^5
class Solution:
    def subtractProductAndSum(self, n: int) -> int:
        n = list(map(int, str(n)))
        sum_1 = 0
        product = 1
        result = 0
        for i in n:
            sum_1 += i
            product *= i
            result = product - sum_1
        return result
            

class Solution:
    def subtractProductAndSum(self, n: int) -> int:
        n = list(map(int, str(n)))
        sum_1 = 0
        product = 1
        result = 0
        for i in n:
            sum_1 += i
            product *= i
            result = product - sum_1
        return result
            
