D121212121213132322331323323132313331323132333131133132313231323221211   >>    D12121212121313232233132332313231333132313233313113313231323132322121   <<    D121212121213132322331323323132313331323132333131133132313231323221213   >>      D121212121213132322331323323132313331323132333131133132313231323221212   >>