Need buy sell signal to be added

Dear Seniors n experts i need a help from u ..
I have 2 levels for buy side say A1,A2 which are two lines need to add buy signal if candle closes above these levels ... Same way for sell sell side i have 2 levels say B1,B2 if candle closes below B1 and B2 means sell signal should come ...
Buy signal at A1 & A2
Sell signal at B1 & B2 ...
Pls do help me ...
Thanks in Advance

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