9dfd6313 ​

input = #0
output = #1
(OList OList Color, OList OList Color)
([[grey, black, black], [green, grey, black], [black, black, grey]], [[grey, green, black], [black, grey, black], [black, black, grey]])
([[grey, black, black, black], [black, grey, black, black], [fuschia, black, grey, black], [fuschia, black, yellow, grey]], [[grey, black, fuschia, fuschia], [black, grey, black, black], [black, black, grey, yellow], [black, black, black, grey]])
([[grey, black, black, black, black], [black, grey, black, black, black], [teal, teal, grey, black, black], [black, red, black, grey, black], [black, red, black, blue, grey]], [[grey, black, teal, black, black], [black, grey, teal, red, red], [black, black, grey, black, black], [black, black, black, grey, blue], [black, black, black, black, grey]])
([[grey, black, black, black, black, black], [black, grey, black, black, black, black], [green, green, grey, black, black, black], [black, black, black, grey, black, black], [red, black, teal, teal, grey, black], [red, black, fuschia, black, black, grey]], ?)