ma3:ma(close,3),colorffffff,linethick1;
ma8:ma(close,8),color00ffff,linethick1;
ma49:ma(close,49),color00ff00,linethick2;
angel:ema(c,2),color000000;
devil:ema(slope(c,21)*20+c,42),pointdot,color000000;
buy1:=cross(angel,devil);
sel:=cross(devil,angel