COMPONENT_LENGTH = 3


def blend(c1: int, c2: int) -> int:
    """Get the median of 2 numbers."""
    return round((c1 + c2) / 2)


def splitColors(rgb: int) -> tuple[int, int, int]:
    """Split an RGB value into its components."""
    (r, g, b) = [
        int(str(rgb).zfill(3 * COMPONENT_LENGTH)[i : i + COMPONENT_LENGTH])
        for i in range(0, 3 * COMPONENT_LENGTH, COMPONENT_LENGTH)
    ]
    return (r, g, b)


def blendColors(rgb1: int, rgb2: int) -> int:
    """Blend two colors represented as RGB values."""
    (r1, g1, b1) = splitColors(rgb1)
    (r2, g2, b2) = splitColors(rgb2)
    (r3, g3, b3) = [
        blend(r1, r2),
        blend(g1, g2),
        blend(b1, b2),
    ]
    # Pad with leading zeros
    (final_r, final_g, final_b) = [str(x).zfill(COMPONENT_LENGTH) for x in (r3, g3, b3)]
    # Compose components and cast to integer
    return int(final_r + final_g + final_b)


print("Testing blendColors()...", end="")
assert blendColors(204153050, 104000152) == 154076101
assert blendColors(220153102, 151189051) == 186171076
assert blendColors(153051153, 51204) == 76051178
assert blendColors(123456789, 123456789) == 123456789
assert blendColors(0, 0) == 0
print("Passed!")