input: Write a python function to create a 10x10 board with alternating 1s and 0s starting from the top left corner.
  assert create_board() == [[1, 0, 1, 0, 1, 0, 1, 0, 1, 0],
                            [0, 1, 0, 1, 0, 1, 0, 1, 0, 1],
                            [1, 0, 1, 0, 1, 0, 1, 0, 1, 0],
                            [0, 1, 0, 1, 0, 1, 0, 1, 0, 1],
                            [1, 0, 1, 0, 1, 0, 1, 0, 1, 0],
                            [0, 1, 0, 1, 0, 1, 0, 1, 0, 1],
                            [1, 0, 1, 0, 1, 0, 1, 0, 1, 0],
                            [0, 1, 0, 1, 0, 1, 0, 1, 0, 1],
                            [1, 0, 1, 0, 1, 0, 1, 0, 1, 0],
                            [0, 1, 0, 1, 0, 1, 0, 1, 0, 1]]
output: def create_board():
      return [[(i + j) % 2 for j in range(10)] for i in range(10)]