def print_pyramid(pyramid):
    lines = []
    for layer in pyramid:
        line = ""
        for brick in layer:
            line += str(brick)
            line += " "
        lines.append(line)
    pyramid_len = max([len(layer) for layer in lines])
    txt = ""
    for line in lines:
        diff = (pyramid_len - len(line)) / 2
        txt += " " * int(diff + 0.5)
        txt += line
        txt += " " * int(diff - 0.5)
        txt += "\n"
    print(txt)