BUY/SELL at start of next candle

[Prakash_Natarajan]

1. Buy: Check open=low of 3 previous candles.

IF TRUE = BUY at start of next candle (4th).

2. Sell: open=high of 3 previous candles.

IF TRUE = SELL at start of next candle (4th).

NEED A SCANNER FOR THIS. PLZ HELP