input smallearth.png

carve short
carve short
carve short
carve short
carve short
carve short
carve short
carve short
carve short
carve short
carve short
carve short
carve short
carve short
carve short

carve narrow
carve narrow
carve narrow
carve narrow
carve narrow
carve narrow
carve narrow
carve narrow
carve narrow
carve narrow
carve narrow
carve narrow
carve narrow
carve narrow
carve narrow
carve narrow
carve narrow
carve narrow
carve narrow
carve narrow
carve narrow
carve narrow
carve narrow
carve narrow
carve narrow
carve narrow

output hw5carve.png