input: Write a function to create a pair of integers where each element is incremented by 1.
  assert create_pair(2, 3) == (3, 4)
  assert create_pair(0, 0) == (1, 1)
  assert create_pair(-1, -1) == (0, 0)
output: def create_pair(a, b):
      return (a + 1, b + 1)