D1212132333132233131323222313231323131122112322331323331331123231323222331   >>    D121213233313223313132322231323132313112211232233132333133112323132322233   <<    D1212132333132233131323222313231323131122112322331323331331123231323222333   >>      D1212132333132233131323222313231323131122112322331323331331123231323222332   >>