i need a AFL with below criteria for scan and expolre

HII all I need a following AFL
parameter
For Buy
1)Buy When EMA Cross 13 To 27
2) MACD Crossover
3) RSI above 50
4) Current Candle Volume is Greater and than Candle
For Sell
1) Sell when EMA Cross 27 To 13
2) MACD Crossover
3) RSI below 50
4) Current Candle Volume is Greater than Last Candle

i need a AFL with below criteria for scan and expolre