1 Buy at (10) < 30
2 Sell at (10) > 40 or after 10 days
The strategy is not profitable for long term trading.
In true TradingView spirit, the author of this script has published it open-source, so traders can understand and verify it. Cheers to the author! You may use it for free, but reuse of this code in a publication is governed by House Rules. You can favorite it to use it on a chart.