B331133131323131133132233133313231323331323223313331313232212131   >>    B33113313132313113313223313331323132333132322331333131323221213   <<    B331133131323131133132233133313231323331323223313331313232212133   >>      B331133131323131133132233133313231323331323223313331313232212132   >>