D121212121213132322331323323132313331323132333131133132322121212111   >>    D12121212121313232233132332313231333132313233313113313232212121211   <<    D121212121213132322331323323132313331323132333131133132322121212113   >>      D121212121213132322331323323132313331323132333131133132322121212112   >>