X_1:=HIGH=HHV(HIGH,20);
X_2:=REF(HIGH,BArslAST(X_1));
X_3:=IF(HIGH =REF(HIGH,1) AND REF(HIGH,1) =REF(HIGH,2),REF(HIGH,1),REF(REF(HIGH,1),BARSLAST(HIGH =REF(HIGH,1) AND REF(HIGH,1) =REF(HIGH,2))));
REF(HIGH,1) X_3 AND HIGH X_3 AND vol 1000 AND REF(CLOSE,1) REF(X_2,2) AND CLOSE REF(X_2,1);