e9afcf9a ​

input = [#0, #1]
output = [#2, #3]
(OList Color, OList Color, OList Color, OList Color)
([green, green, green, green, green, green], [brown, brown, brown, brown, brown, brown], [green, brown, green, brown, green, brown], [brown, green, brown, green, brown, green])
([yellow, yellow, yellow, yellow, yellow, yellow], [teal, teal, teal, teal, teal, teal], [yellow, teal, yellow, teal, yellow, teal], [teal, yellow, teal, yellow, teal, yellow])
([fuschia, fuschia, fuschia, fuschia, fuschia, fuschia], [red, red, red, red, red, red], ?, ?)