local t = turtle

print("Length: ")
local LENGTH = tonumber(read())
print("Width: ")
local WIDTH = tonumber(read()) 
print("Height: ")
local HEIGHT = tonumber(read())

---------------------------

local function detectedDig()
    while t.detect() == true do
        t.detect()
        t.dig()
    end
end

---------------------------
for n=1,HEIGHT do
    for i=1,WIDTH do
        for j=2,LENGTH do
            detectedDig()             ----                                
            t.forward()
        end

        if WIDTH%2 ~= 0 then
            if i+1<=WIDTH then
                if i%2 == 0 then
                    t.turnLeft()
                    detectedDig()            ----
                    t.forward()
                    t.turnLeft()
                elseif i%2 ~= 0 then
                    t.turnRight()
                    detectedDig()            -----
                    t.forward()
                    t.turnRight()
                end
            end
        elseif WIDTH%2 == 0 then
            if n%2 == 0 then
                if i+1<=WIDTH then
                    if i%2 ~= 0 then
                        t.turnLeft()
                        detectedDig()             -----
                        t.forward()
                        t.turnLeft()
                    elseif i%2 == 0 then
                        t.turnRight()
                        detectedDig()            -----
                        t.forward()
                        t.turnRight()
                    end
                end
            elseif n%2 ~= 0 then
                if i+1<=WIDTH then
                    if i%2 == 0 then
                        t.turnLeft()
                        detectedDig()             -----
                        t.forward()
                        t.turnLeft()
                    elseif i%2 ~= 0 then
                        t.turnRight()
                        detectedDig()            -----
                        t.forward()
                        t.turnRight()
                    end
                end
            end 
        end
    end
    if n<HEIGHT then
        t.digUp()
        t.up()
        t.turnLeft()
        t.turnLeft()
    end

end
----------------------------
if HEIGHT%2 == 0 then
    for i=2,HEIGHT do
        t.down()
    end
end 

if HEIGHT%2 ~= 0 then
    if WIDTH%2 == 0 then
        t.turnRight()

        for i=2,WIDTH do
            t.forward()
        end

        t.turnLeft()

        for i=2,HEIGHT do 
            t.down()
        end 
    

    elseif WIDTH%2 ~= 0 then
        t.turnLeft()

        for i=2,WIDTH do
            t.forward()
        end

        t.turnLeft()

        for i=2,LENGTH do
            t.forward()
        end

        for i=2,HEIGHT do
            t.down()
        end
    end 
end