D12121111111123313133313133313231131323132322331323132323323211131   >>    D1212111111112331313331313331323113132313232233132313232332321113   <<    D12121111111123313133313133313231131323132322331323132323323211133   >>      D12121111111123313133313133313231131323132322331323132323323211132   >>