input:cc(50,10,150,5);

h_1:=hhv(h,enterbars+1);
l_1:=llv(l,enterbars+1);
hh:=hhv(h,cc);
ll:=llv(l,cc);

kd:=h>ref(hh,1);
kk:=l<ref(ll,1);

if h>l_1+17 then sellshort(1,0,market);

buy(kd and holding=0,1,market);

if l<h_1-17 then sell(1,0,market);

buyshort(kk and holding=0,1,market);