B231123233313231323132233133313233313232233132313231333133313231322331111   >>    B23112323331323132313223313331323331323223313231323133313331323132233111   <<    B231123233313231323132233133313233313232233132313231333133313231322331113   >>      B231123233313231323132233133313233313232233132313231333133313231322331112   >>