DRAWGBK(c>0 , COLORRgb(0,0,0), COLORRGB(0,0,1),1);
 KLINE(O,H,L,C,0);
 input:N(10,1,88);
 V1:=ISLASTBAR;
 V2:=REF(HIGH,N)=HHV(HIGH,2*N+1);
 V3:=FILTER(V2,N);
 V4:=BACKSET(V3,N+1);
 V5:=FILTER(V4,N);
 V6:=V5 OR V1;
 V7:=REF(LOW,N)=LLV(LOW,2*N+1);
 V8:=FILTER(V7,N);
 V9:=BACKSET(V8,N+1);
 VA:=FILTER(V9,N);
 VB:=VA AND NOT(V5);
 VC:=BACKSET(V6,REF(BARSLAST(VB),1)+1);
 VD:=VC>REF(VC,1);
 VE:=BACKSET(VD,2);
 VF:=VE>REF(VE,1);
 V10:=BACKSET(VF AND COUNT(V6,REF(BARSLAST(VB),1)+2)=0,REF(BARSLAST(VB),1)+2);
 V11:=V10>REF(V10,1);
 V12:=BACKSET(V11 AND COUNT(V6,REF(BARSLAST(VB),1)+2)=0,REF(BARSLAST(VB),1)+2);
 V13:=V12>REF(V12,1);
 V14:=IF(V6,COUNT(VB,REF(BARSLAST(V6),1)+1),0);
 V15:=IF(V14=1 AND V6,BARSLAST(VF),0);
 V16:=IF(V6 AND REF(LOW,BARSLAST(VF))>=REF(LOW,BARSLAST(V11)),BARSLAST(V11),BARSLAST(VF));
 V17:=IF(V14=2 AND V6,V16,0);
 V18:=IF(V14>=3 AND V6,IF(V6 AND REF(LOW,V16)>=REF(LOW,BARSLAST(V13)),BARSLAST(V13),V16),0);
 V19:=V15+V17+V18;
 V1A:=BACKSET(V6,V19);
 V1B:=V1A>REF(V1A,1);
 V1C:=BACKSET(V1B,2);
 V1D:=V1C>REF(V1C,1);
 V1E:=V1D OR V1;
 V1F:=BACKSET(V1E,REF(BARSLAST(V6),1)+1);
 V20:=V1F>REF(V1F,1);
 V21:=BACKSET(V20,2);
 V22:=V21>REF(V21,1);
 V23:=BACKSET(V22 AND COUNT(V1E,REF(BARSLAST(V6),1)+2)=0,REF(BARSLAST(V6),1)+2);
 V24:=V23>REF(V23,1);
 V25:=BACKSET(V24 AND COUNT(V1E,REF(BARSLAST(V6),1)+2)=0,REF(BARSLAST(V6),1)+2);
 V26:=V25>REF(V25,1);
 V27:=IF(V1E,COUNT(V5,REF(BARSLAST(V1E),1)+1),0);
 V28:=IF(V27=1 AND V1E,BARSLAST(V22),0);
 V29:=IF(V1E AND REF(HIGH,BARSLAST(V22))<=REF(HIGH,BARSLAST(V24)),BARSLAST(V24),BARSLAST(V22));
 V2A:=IF(V27=2 AND V1E,V29,0);
 V2B:=IF(V27>=3 AND V1E,IF(V1E AND REF(HIGH,V29)<=REF(HIGH,BARSLAST(V26)),BARSLAST(V26),V29),0);
 V2C:=V28+V2A+V2B;
 V2D:=BACKSET(V1E,V2C);
 V2E:=V2D>REF(V2D,1);
 V2F:=BACKSET(V2E,2);
 V30:=V2F>REF(V2F,1);
 DRAWLINE(V1D,LOW,V30,HIGH,0),linethick4,colorred;
 DRAWLINE(V30,HIGH,V1D,LOW,0),linethick4,colorgreen;
 DRAWLINE(REF(V1D,1),REF(L,1),V1D,L,0),LINETHICK2,,COLORBLUE;
 DRAWLINE(REF(V30,1),REF(H,1),V30,H,0),LINETHICK2,,COLORBLUE;
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 V31:=BACKSET(V1,BARSLAST(V1D)+1);
 V32:=V31>REF(V31,1);
 V33:=BACKSET(V1,BARSLAST(V30)+1);
 V34:=V33>REF(V33,1);
 V35:=IF(BARSLAST(V32)<BARSLAST(V34),V32,V34);
 V36:=IF(BARSLAST(V32)<BARSLAST(V34),LOW,HIGH);
 DRAWLINE(V35,V36,V1,CLOSE,0),linethick2;
 V37:=BACKSET(V1,BARSLAST(V1D)+1);
 V38:=V37>REF(V37,1);
 V39:=BACKSET(V38,REF(BARSLAST(V1D),1)+2);
 V3A:=V39>REF(V39,1);
 DRAWLINE(V3A,LOW,V38,LOW,1),linethick2;
 V3B:=BACKSET(V1,BARSLAST(V30)+1);
 V3C:=V3B>REF(V3B,1);
 V3D:=BACKSET(V3C,REF(BARSLAST(V30),1)+2);
 V3E:=V3D>REF(V3D,1);
 DRAWLINE(V3E,HIGH,V3C,HIGH,1),linethick2;
前一低: REF(LOW,BARSLAST(V38)),colorccff99,LINEDOT,linethick2;
前一高: REF(HIGH,BARSLAST(V3C)),colorccff99,linethick2;
前二低: REF(LOW,BARSLAST(V3A)),colormagenta,LINEDOT,linethick2;
前二高: REF(HIGH,BARSLAST(V3E)),colormagenta,linethick2;