D3313123121113232223323132313231323221323132322331313231333132322123232211   >>    D331312312111323222332313231323132322132313232233131323133313232212323221   <<    D3313123121113232223323132313231323221323132322331313231333132322123232213   >>      D3313123121113232223323132313231323221323132322331313231333132322123232212   >>