Need Simple afl/Nest/Pi

Algos, strategies, code
1

Highest high of previous candle = buy

Exit at highest high of previous candle +5

Lowest low of previous candle=Sell

Exit at Lowest of previous candle -5

2

HELLO IS THE CODE.

BUY CODE:

REF (HIGH, 1)

BUY EXIT CODE:

SET A = 5
REF (HIGH, 1) + A

SELL CODE:

REF (LOW, 1)

SELL EXIT:
SET A = 5
REF (LOW, 1) - A