D12121212213231323132323323132322331323131123313231322131323111   >>    D1212121221323132313232332313232233132313112331323132213132311   <<    D12121212213231323132323323132322331323131123313231322131323113   >>      D12121212213231323132323323132322331323131123313231322131323112   >>