dig Box

arg= {...}
arg[1] = arg[1]+0
arg[2] = arg[2]+0
turtle.digDown()
turtle.digUp()
for j=0, (arg[2] -1) do
    for i=0, (arg[1]-1) do
        turtle.dig()
            while(not turtle.forward()) do
                turtle.dig()
                os.sleep(.5)
                end
        turtle.digDown()
        turtle.digUp()
        end
    if(j%2==1)  then
        turtle.turnLeft()
        turtle.dig()
        turtle.forward()
        turtle.digDown()
        turtle.digUp()
        turtle.turnLeft()
        end
    if(j%2==0) then
                turtle.turnRight()
                turtle.dig()
                turtle.forward()
                turtle.digUp()
                turtle.digDown()
                turtle.turnRight()
        end
    end