D12121212213231323132323323132322331323131123313231322132313233311   >>    D1212121221323132313232332313232233132313112331323132213231323331   <<    D12121212213231323132323323132322331323131123313231322132313233313   >>      D12121212213231323132323323132322331323131123313231322132313233312   >>