X_1:=IF(DATE 1151219 AND DATE 900101,1,0);
X_2:=REF(CLOSE,8) REF(OPEN,8) AND REF(CLOSE,7) REF(OPEN,7) AND REF(CLOSE,6) REF(OPEN,6) AND REF(CLOSE,5) REF(OPEN,5) AND REF(CLOSE,4) REF(OPEN,4) AND REF(CLOSE,3) REF(OPEN,3) AND REF(CLOSE,2) REF(OPEN,2) AND REF(CLOSE,1) REF(OPEN,1) AND CLOSE OPEN;
GX43:X_2*X_1;