D121211111111233131333131333132311313231323223313231323212331323133313231322121   >>    D12121111111123313133313133313231131323132322331323132321233132313331323132212   <<    D121211111111233131333131333132311313231323223313231323212331323133313231322123   >>      D121211111111233131333131333132311313231323223313231323212331323133313231322122   >>