calculate the product of m x n but without using the * operator. Use both functions below def add(m, n): if m == 0: return n if n == 0: return m return add(m, succ(n)) def succ(n): return n +1

def add(m, n):
  if m == 0:
    return n
  else:
    return add(m, succ(n))
def succ(n):
  return n + 1

def product(m, n):
  if m == 0:
    return 0
  else:
    return add(n, product(dec(m), n))
def dec(n):
  return n - 1

product(4, 5)