B231123233313231323132233133313233313232233132313231333132333132333132322331   >>    B23112323331323132313223313331323331323223313231323133313233313233313232233   <<    B231123233313231323132233133313233313232233132313231333132333132333132322333   >>      B231123233313231323132233133313233313232233132313231333132333132333132322332   >>