input: Write a python function to create a class that finds the sum and product of two numbers.
  assert Numbers(22, 10).find_sum() == 32
  assert Numbers(22, 10).find_product() == 220
  assert Numbers(3, 5).find_sum() == 8
  assert Numbers(3, 5).find_product() == 15
output: class Numbers:
      def __init__(self, a, b):
          self.a = a
          self.b = b
  
      def find_sum(self):
          return self.a + self.b
  
      def find_product(self):
          return self.a * self.b