turtleProgram

width = tonumber(io.read())
height = tonumber(io.read())
length = tonumber(io.read())

left = true

pos = {
    x = 1,
    y = 1,
    z = 1
}

function forward()
    if not turtle.forward() then
        turtle.dig()
        return forward()
    end
end

function down()
    if not turtle.down() then
        turtle.digDown()
        down()
    end
end

for i = pos.y, height, 1 do
    for j = pos.z, length, 1 do
        for k = pos.x, width, 1 do
            forward()
        end

        if left then
            turtle.turnLeft()
            if j < length then forward() end
            turtle.turnLeft()

            left = false
        else
            turtle.turnRight()
            if j < length then forward() end
            turtle.turnRight()

            left = true
        end
    end

    down()
    left = not left
end