VAR1:=(CLOSE-LLV(LOW,20))/(HHV(HIGH,20)-LLV(LOW,20))*100;
VAR2:=SMA(VAR1,3,1);
VAR3:=SMA(VAR2,3,1);
VAR4:=3*VAR2-2*VAR3;
VAR5:=CROSS(VAR4,VAR2) AND VAR2<20;
VAR6:=CROSS(VAR2,VAR4) AND VAR2>80;
STICKLINE(VAR5,0,50,4,0),COLORRED;
STICKLINE(VAR6,50,100,4,0),COLORGREEN;
DRAWTEXT(VAR5,40,'B'),COLORRED;
DRAWTEXT(VAR6,60,'S'),COLORGREEN;