B331133131323131133132233133313231323132333131322331333133312311   >>    B33113313132313113313223313331323132313233313132233133313331231   <<    B331133131323131133132233133313231323132333131322331333133312313   >>      B331133131323131133132233133313231323132333131322331333133312312   >>