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DIF:=EMA(CLOSE,10)-EMA(CLOSE,20);

DEA:=EMA(DIF,7);

MACD:=(DIF-DEA)*2;

A1:=CROSS(DIF,DEA) AND  DIF>=0  AND DEA>=0;

A2:=BARSLAST(A1);

A3:=COUNT(A1,REF(A2,1)+2)>=2 AND EVERY(DIF>0 AND DEA>0,REF(A2,1)+1);

A4:REF(BARSLASTCOUNT(MACD<0)<=3,1) AND A3;