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

art={
    {0,0,0,0,1,1,1,0,0},
    {0,0,0,1,2,2,2,1,0},
    {0,0,1,2,3,3,2,2,1},
    {0,1,2,2,2,2,2,2,1},
    {1,2,2,2,2,2,2,1,0},
    {0,1,2,2,2,2,2,2,1},
    {0,0,1,2,2,2,2,2,1},
    {0,0,0,1,2,2,2,1,0},
    {0,0,0,0,1,1,1,0,0}
}

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
 line=art[i]
 buildLine(line)
end