args = {...}
function line(length)
	for k=1,length do
		turtle.dig()
		turtle.forward()
	end
end

function surface(length,width)
	line(length-1)
	for k=1,width-1 do
		if k%2==0 then
			turtle.turnLeft()
			turtle.dig()
			turtle.forward()
			turtle.turnLeft()
		else
			turtle.turnRight()
			turtle.dig()
			turtle.forward()
			turtle.turnRight()
		end
		line(length-1)
	end
end

turtle.dig()
turtle.forward()
for k=1,args[3]-1 do
	surace(args[1],args[2])
	if args[2]%2==0 then
        turtle.turnRight()
        shell.run("go","forward",args[2]-1)
        turtle.turnRight()
    else
        turtle.turnLeft()
        shell.run("go","forward",args[2]-1)
        turtle.turnLeft()
        shell.run("go","forward",args[1]-1)
        turtle.turnLeft()
        turtle.turnLeft()
    end
end
surface(args[1],args[2])