LT:=BArslAST(L=LLV(L,120));
CT:=CONST(LT)+1;
HT:=FINDHIGHBARS(H,CT,CT,1);
HH:=FINDHIGH(H,CT,CT,1);
LL:=CONST(REF(L,LT));
QD:=CURRBARSCOUNT=CT*2;
ZD:=CURRBARSCOUNT=CT;
DRAWLINE(QD,CONST(HH),ISLASTBAR,CONST(HH),0),COLORBLUE;
DRAWLINE(QD,CONST(HH),ZD,LL,0),COLORBLUE;
DRAWLINE(ZD,LL,ISLASTBAR,CONST(HH),0),COLORBLUE;