turtle.select(1)
turtle.refuel()
rednet.open("right")
a = tonumber(arg[1])
b = tonumber(arg[2])
c = tonumber(arg[3])
rednet.send(7,"Dig: start")
gc = 0
if b%2==0 then

    for ic = 1, c do
        gc = gc + 1
        for ia = 1, a-1 do
            turtle.dig()
            turtle.forward()
        end

        turtle.turnRight()
        turtle.dig()
        turtle.forward()
        turtle.turnRight()

        for ib = 1, (b/2)-1 do

            for ia = 1, a-2 do
                turtle.dig()
                turtle.forward()
            end

            turtle.turnLeft()
            turtle.dig()
            turtle.forward()
            turtle.turnLeft()

            for ia = 1, a-2 do
                turtle.dig()
                turtle.forward()
            end

            turtle.turnRight()
            turtle.dig()
            turtle.forward()
            turtle.turnRight()

        end

        for ia = 1, a-1 do
            turtle.dig()
            turtle.forward()
        end

        turtle.turnRight()
        for ib = 1, b-1 do
            turtle.dig()
            turtle.forward()
        end
        turtle.turnRight()
        if gc ~= tonumber(c) then
            turtle.digDown()
            turtle.down()
        end
    end

else
    for ic = 1, c do
        gc = gc + 1
        for ib = 1, (b-1)/2 do
            for ia = 1, a-1 do
                turtle.dig()
                turtle.forward()
            end
        
            turtle.turnRight()
            turtle.dig()
            turtle.forward()
            turtle.turnRight()

            for ia = 1, a-1 do
                turtle.dig()
                turtle.forward()
            end
            turtle.turnLeft()
            turtle.dig()
            turtle.forward()
            turtle.turnLeft()
        end
        for ia = 1, a-1 do
            turtle.dig()
            turtle.forward()
        end
        turtle.turnRight()
        turtle.turnRight()
        if gc ~= tonumber(c) then
            turtle.digDown()
            turtle.down()
        end
    end
end
rednet.send(7,"Dig: end")