input: Write a python function to create a dictionary where keys are numbers from 1 to a given number and values are the same as keys.
  assert create_dict(5) == {1: 1, 2: 2, 3: 3, 4: 4, 5: 5}
  assert create_dict(3) == {1: 1, 2: 2, 3: 3}
  assert create_dict(0) == {}
output: def create_dict(n):
      return {i: i for i in range(1, n + 1)}