D121212121213132322331323323132313331323132333131133132322123123111   >>    D12121212121313232233132332313231333132313233313113313232212312311   <<    D121212121213132322331323323132313331323132333131133132322123123113   >>      D121212121213132322331323323132313331323132333131133132322123123112   >>