B33113313132313113313223313331323132313233313331311331323233232212131   >>    B3311331313231311331322331333132313231323331333131133132323323221213   <<    B33113313132313113313223313331323132313233313331311331323233232212133   >>      B33113313132313113313223313331323132313233313331311331323233232212132   >>