--black1
--red2
--wite3
--empty4

art={{4,4,4,4,1,1,1,4,4},
{4,4,4,1,2,2,2,1,4},
{4,4,1,2,3,3,2,2,1},
{4,1,2,2,2,2,2,2,1},
{1,2,2,2,2,2,2,1,4},
{4,1,2,2,2,2,2,2,1},
{4,4,1,2,2,2,2,2,1},
{4,4,4,1,2,2,2,1,4},
{4,4,4,4,1,1,1,4,4}
  }

function buildLine (colors)
    for i = 1,#colors do
        slot = colors[i]
        if slot~=0 then
          turtle.select(slot)
          turtle.placeDown()
        end
        turtle.forward()
    end
    turtle.turnRight()
    turtle.forward()
    turtle.turnLeft()
    for e = 1,#colors do
        turtle.back()
    end
end

for i=1,#art do
 d=art[i]
 buildLine(d)
end