B331133131323131133132233133313231323331323223313331333131112121   >>    B33113313132313113313223313331323132333132322331333133313111212   <<    B331133131323131133132233133313231323331323223313331333131112123   >>      B331133131323131133132233133313231323331323223313331333131112122   >>