B331133131323131133132233133313231323331323331311133313232211331   >>    B33113313132313113313223313331323132333132333131113331323221133   <<    B331133131323131133132233133313231323331323331311133313232211333   >>      B331133131323131133132233133313231323331323331311133313232211332   >>