print("How wide do I mine, boss?")
local Width = tonumber(read())
print("How deep do I mine, boss?")
local Depth = tonumber(read())
print("How high do I mine, boss?")
local Height = tonumber(read())

function Mine(Width,Depth,Height)
    for calcDepth = 1,Depth,1
        do

            file = io.open("log.txt", "a")
            file:write("Current depth: " .. calcDepth .. ". Expected depth: " .. Depth .. "\n")
            file:write("What gives? (d) " .. tostring(calcDepth < Depth) .. "\n")
            file:close()

            for calcHeight = 1,Height,1
                do
                    file = io.open("log.txt", "a")
                    file:write("Current height: " .. calcHeight .. ". Expected height: " .. Height .. "\n")
                    file:write("What gives? (h) " .. tostring(calcHeight < Height))
                    file:write("\n")
                    file:close()
                    turtle.dig()
                    turtle.up()

                end
        end

    for i = 1,Height,1
        do
            turtle.down()
        end

    for i = 1,Depth,1
        do
            turtle.back()
        end
end
Mine(Width, Depth, Height)
print("Job completed, boss.")