uses crt; var xa,ya,xb,yb,xc,yc,a,b,c:real; begin clrscr; readln(xa,ya,xb,yb,xc,yc); a:=sqrt(sqr(xa-xb)+sqr(ya-yb)); b:=sqrt(sqr(xb-xc)+sqr(yb-yc)); c:=sqrt(sqr(xa-xc)+sqr(ya-yc)); if (a+b>c) and (a+c>b) and (b+c>a) then writeln('Co') else writeln('Khong'); readln; end.
