u=" " v=u+u r=u+v x="-" y="O" t="\n" s="::" z=1000 a=x b=x c=x d=x e=x f=x g=x h=x i=x j=x k=x l=x m=x n=x o=x p=x if:rf<1thengoto8end if:rft0 and :distance