X1:= (CLOSE-MA(CLOSE,40))/MA(CLOSE,40)*100;X2:=(CLOSE-LLV(LOW,27))/(HHV(HIGH,27)-LLV(LOW,27))*100;X3:=(X2,3,1);X4:= 3*SMA((CLOSE-LLV(LOW,27))/(HHV(HIGH,27)-LLV(LOW,27))*100,5,1)-2*SMA(SMA((CLOSE-LLV(LOW,27))/(HHV(HIGH,27)-LLV(LOW,27))*100,5,1),3,1);OSS(X4,10) AND CROSS(X1,-24);