B331133131323131133132233133313233313133112121111331333132313232211331   >>    B33113313132313113313223313331323331313311212111133133313231323221133   <<    B331133131323131133132233133313233313133112121111331333132313232211333   >>      B331133131323131133132233133313233313133112121111331333132313232211332   >>