D121212121213132322331323323132313331323132333131133132322122311   >>    D12121212121313232233132332313231333132313233313113313232212231   <<    D121212121213132322331323323132313331323132333131133132322122313   >>      D121212121213132322331323323132313331323132333131133132322122312   >>