A :=MA(CLOSE,26); 
UP:=A + 2*STD(CLOSE,26); 
LOWER:=A - 2*STD(CLOSE,26); 
W1:=C=HHV(C,20);  
W2:=BARSLAST(W1);  
W3:=IF(W2>0,REF(C,W2),REF(C,W2));  
W4:=CROSS(C,REF(W3,1));  
IF(W4 AND COUNT(W4,5)=1,20,0);  
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