function dropRepaired()
    turtle.turnLeft()
    turtle.drop()
    turtle.turnRight()
end

while true do
    -- in to down
    while turtle.suck() do
        if turtle.getItemCount(2) > 0 then
            if turtle.craft() then
                dropRepaired()
            else
                turtle.select(2)
                turtle.dropDown()
                turtle.select(1)
            end
        end
    end
    turtle.dropDown()
    -- up to down
    while turtle.suckUp() do
        if turtle.getItemCount(2) > 0 then
            if turtle.craft() then
                dropRepaired()
            else
                turtle.select(2)
                turtle.dropDown()
                turtle.select(1)
            end
        end
    end
    turtle.dropDown()
    -- in to up
    while turtle.suck() do
        if turtle.getItemCount(2) > 0 then
            if turtle.craft() then
                dropRepaired()
            else
                turtle.select(2)
                turtle.dropUp()
                turtle.select(1)
            end
        end
    end
    turtle.dropUp()
    -- down to up
    while turtle.suckDown() do
        if turtle.getItemCount(2) > 0 then
            if turtle.craft() then
                dropRepaired()
            else
                turtle.select(2)
                turtle.dropUp()
                turtle.select(1)
            end
        end
    end
    turtle.dropUp()
end