Where am I going wrong with this problem? I get the error - TypeError: **init**() missing 2 required positional arguments: 'm' and 'n'

```
  class hello:

    def __init__(self, m,n):
      self.g = m
      self.h = n

    def hi(self, x, y):
      a = x + g
      b = x + h
      return a,b

  m = 100
  n = 200
  obj = hello()
  c = obj.hi(10,11)
  print(c)

```