Q

turtle.refuel()
print("Turtle Refueled.")
FlipFlop = false
function mineLine(int)
    for i=int, 1, -1 do
        turtle.dig()
        turtle.digDown()
        turtle.forward()
    end
end

function newLine()
    if (FlipFlop == false) then
        FlipFlop = true
        turtle.turnLeft()
        turtle.forward()
        turtle.turnLeft()
        turtle.digDown()
        else
        FlipFlop = false
        turtle.turnRight()
        turtle.forward()
        turtle.turnRight()
        turtle.digDown()
    end
end

function alternateFlipFlop()
    if (FlipFlop == false) then
        FlipFlop = true
        else
        FlipFlop = false
    end
end

function quary(x, y)
    for i=y, 1, -1 do
        mineLine(x)
        newLine()
    end
    alternateFlipFlop()
end

while(true) do
    quary(5, 5)
    turtle.digDown()
    turtle.down()
end