D121212121213132313113313231123313232233132222132313231323331111   >>    D12121212121313231311331323112331323223313222213231323132333111   <<    D121212121213132313113313231123313232233132222132313231323331113   >>      D121212121213132313113313231123313232233132222132313231323331112   >>