IPFY

cl = 1

write("Forward:")

local f = tonumber(read())


write("Right:")

local r = tonumber(read())


write("Up:")

local u = tonumber(read())

function dig()
    while turtle.detect() == true do
        turtle.dig()
    end
end

function digUp()
    while turtle.detectUp() == true do
        turtle.digUp()
    end
end

function digDown()
    while turtle.detectDown() == true do
        turtle.digDown()
    end
end

function forward()
    local keepGoing = true
    while keepGoing do
        if turtle.forward() then
            keepGoing = false
        end
    end
end

function up()
    local keepGoing = true
    while keepGoing do
        if turtle.up() then
            keepGoing = false
        end
    end
end

function down()
    local keepGoing = true
    while keepGoing do
        if turtle.down() then
            keepGoing = false
        end
    end
end

function chest()
    if cl > 16 then
        cl = 1
    end
    turtle.select(cl)
    if turtle.getItemCount(cl) <= 0 then
        cl+=1
        turtle.select(cl)
    end
end

function chestUp()

    turtle.select(cl)
end

turtle.select(1)

for i = 1, u do
    for j = 1, r do
            for k = 1, f-1 do
                dig()
                digDown()
                chest()
                turtle.placeDown()
                forward()
            end
            if j ~= r then
                if j%2 ~= 0 then
                    turtle.turnRight()
                    dig()
                    digDown()
                    chest()
                    turtle.placeDown()
                    forward()
                    turtle.turnRight()
                end
                if j%2 == 0 then
                    turtle.turnLeft()
                    dig()
                    chest()
                    turtle.placeDown()
                    forward()
                    turtle.turnLeft()
                end
            end
    end

    if r%2 == 0 then
        turtle.turnRight()
        for b = 1, r-1 do
            forward()
        end
        turtle.turnRight()
    end

    if r%2 ~= 0 then
        for b = 1, f-1 do
            turtle.back()
        end
        turtle.turnLeft()
        for b = 1, r-1 do
            forward()
        end
        turtle.turnRight()
    end

    if i ~= u then
        digUp()
        chestUp()
        up()
    end
end

for d = 1, u-1 do
    down()
end