B231123233313231323132233133313233313232233132313231333133313231322331121   >>    B23112323331323132313223313331323331323223313231323133313331323132233112   <<    B231123233313231323132233133313233313232233132313231333133313231322331123   >>      B231123233313231323132233133313233313232233132313231333133313231322331122   >>