Speed Logic Engine

shell.run("clr")
print("[5] 6 ")
local sel = 1
local nums = {5,6}
while true do
    local e = {os.pullEvent("key")}
    if e[2] == keys.left and sel == 2 then
        term.setCursorPos(1,1)
        term.clearLine()
        sel = 1
        local other = 2
        print("["..tostring(nums[sel]).."] "..nums[other].." ")
    elseif e[2] == keys.right and sel == 1 then
        term.setCursorPos(1,1)
        term.clearLine()
        sel = 2
        local other = 1
        print(" "..tostring(nums[other]).." ["..nums[sel].."]")
    elseif e[2] == keys.enter then
        term.setCursorPos(1,2)
        local choice = io.read()
        if choice then
            term.setCursorPos(1,2)
            term.clearLine()
            choice = tonumber(choice)
            if choice == nums[sel] + 1 or choice == nums[sel] - 1 then
                nums[sel] = tonumber(choice)
            end
            if sel == 1 then
                local other = 2
                term.setCursorPos(1,1)
                term.clearLine()
                print("["..tostring(nums[sel]).."] "..nums[other].." ")
            elseif sel == 2 then
                local other = 1
                term.setCursorPos(1,1)
                term.clearLine()
                print(" "..tostring(nums[other]).." ["..nums[sel].."]")
            end
        end
    end
end