B331133131323131133132233133313233313233211331333133313232211331   >>    B33113313132313113313223313331323331323321133133313331323221133   <<    B331133131323131133132233133313233313233211331333133313232211333   >>      B331133131323131133132233133313233313233211331333133313232211332   >>