e1d2900e ​

input = fill #0 (fill #1 black) |> fold rect #2
output = fill #0 (fill #1 black) |> fold rect #3
(VInt, HInt, UList ((VInt, HInt, VInt, HInt), Color), UList ((VInt, HInt, VInt, HInt), Color))
(30v, 30h, {((1v, 19h, 1v, 19h), blue), ((29v, 22h, 29v, 22h), blue), ((24v, 14h, 24v, 14h), blue), ((23v, 21h, 24v, 22h), red), ((17v, 21h, 17v, 21h), blue), ((17v, 7h, 17v, 7h), blue), ((16v, 19h, 16v, 19h), blue), ((16v, 11h, 17v, 12h), red), ((11v, 27h, 11v, 27h), blue), ((11v, 11h, 11v, 11h), blue), ((10v, 19h, 10v, 19h), blue), ((8v, 6h, 8v, 6h), blue), ((5v, 25h, 5v, 25h), blue), ((5v, 19h, 6v, 20h), red), ((5v, 15h, 5v, 15h), blue), ((5v, 12h, 5v, 12h), blue), ((5v, 3h, 5v, 3h), blue), ((4v, 6h, 5v, 7h), red)}, {((25v, 22h, 25v, 22h), blue), ((24v, 14h, 24v, 14h), blue), ((23v, 21h, 24v, 22h), red), ((22v, 21h, 22v, 21h), blue), ((17v, 10h, 17v, 10h), blue), ((16v, 13h, 16v, 13h), blue), ((16v, 11h, 17v, 12h), red), ((15v, 11h, 15v, 11h), blue), ((11v, 27h, 11v, 27h), blue), ((7v, 19h, 7v, 19h), blue), ((6v, 6h, 6v, 6h), blue), ((5v, 21h, 5v, 21h), blue), ((5v, 19h, 6v, 20h), red), ((5v, 18h, 5v, 18h), blue), ((5v, 8h, 5v, 8h), blue), ((5v, 5h, 5v, 5h), blue), ((4v, 19h, 4v, 19h), blue), ((4v, 6h, 5v, 7h), red)})
(30v, 30h, {((28v, 25h, 28v, 25h), blue), ((24v, 4h, 24v, 4h), blue), ((22v, 17h, 22v, 17h), blue), ((19v, 24h, 19v, 24h), blue), ((18v, 17h, 19v, 18h), red), ((16v, 12h, 16v, 12h), blue), ((11v, 8h, 11v, 8h), blue), ((9v, 18h, 9v, 18h), blue), ((8v, 17h, 8v, 17h), blue), ((8v, 7h, 9v, 8h), red), ((8v, 2h, 8v, 2h), blue), ((4v, 7h, 4v, 7h), blue), ((3v, 27h, 3v, 27h), blue)}, {((28v, 25h, 28v, 25h), blue), ((24v, 4h, 24v, 4h), blue), ((20v, 17h, 20v, 17h), blue), ((19v, 19h, 19v, 19h), blue), ((18v, 17h, 19v, 18h), red), ((17v, 18h, 17v, 18h), blue), ((16v, 12h, 16v, 12h), blue), ((10v, 8h, 10v, 8h), blue), ((8v, 9h, 8v, 9h), blue), ((8v, 7h, 9v, 8h), red), ((8v, 6h, 8v, 6h), blue), ((7v, 7h, 7v, 7h), blue), ((3v, 27h, 3v, 27h), blue)})
(10v, 13h, {((9v, 5h, 9v, 5h), blue), ((5v, 8h, 5v, 8h), blue), ((4v, 11h, 5v, 12h), red), ((4v, 6h, 4v, 6h), blue), ((4v, 2h, 5v, 3h), red)}, {((9v, 5h, 9v, 5h), blue), ((5v, 10h, 5v, 10h), blue), ((4v, 11h, 5v, 12h), red), ((4v, 4h, 4v, 4h), blue), ((4v, 2h, 5v, 3h), red)})
(30v, 30h, {((28v, 2h, 28v, 2h), blue), ((27v, 15h, 27v, 15h), blue), ((26v, 23h, 27v, 24h), red), ((21v, 29h, 21v, 29h), blue), ((18v, 23h, 18v, 23h), blue), ((18v, 14h, 18v, 14h), blue), ((18v, 3h, 18v, 3h), blue), ((17v, 18h, 18v, 19h), red), ((17v, 15h, 17v, 15h), blue), ((17v, 10h, 18v, 11h), red), ((14v, 10h, 14v, 10h), blue), ((12v, 19h, 12v, 19h), blue), ((11v, 6h, 11v, 6h), blue), ((10v, 28h, 10v, 28h), blue), ((7v, 11h, 7v, 11h), blue), ((6v, 6h, 7v, 7h), red), ((4v, 6h, 4v, 6h), blue), ((3v, 26h, 3v, 26h), blue), ((2v, 15h, 2v, 15h), blue)}, ?)