import numpy as np


def ex4(image_array: np.array, offset: (int, int), spacing: (int, int)):
    mask = np.zeros(shape=image_array.shape, dtype=image_array.dtype)
    test = list(range(offset[0], mask.shape[1] - 1, spacing[0]))
    print(test)
    pass


if __name__ == '__main__':
    ex4(np.array([[(0, 0, 0), (0, 0, 0), (0, 0, 0), (0, 0, 0)],
                  [(0, 0, 0), (0, 0, 0), (0, 0, 0), (0, 0, 0)],
                  [(0, 0, 0), (0, 0, 0), (0, 0, 0), (0, 0, 0)]
                  ]), offset=(1, 1), spacing=(2, 2))