Can someone help me to code this simple EA?

This is the set-up:

indicators:
Bollinger Bands (20,2)
Bollinger Bands (20,3)
EMA 60
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Buy open:
- Open if price is under the lower band(20,2), and above the 60EMA.

Buy close:
- Close if price is above the higher band(20,2)
- Close if price is under the lower band(20,3)


Sell open:
- Open if price is above the higher band (20,2) and under the 60EMA.

Sell close:
- Close if price is under the lower band(20,2)
- Close if price is above the higher band(20,3)