C2221232323213331311331333133313231333132333112323132332321123211   >>    C222123232321333131133133313331323133313233311232313233232112321   <<    C2221232323213331311331333133313231333132333112323132332321123213   >>      C2221232323213331311331333133313231333132333112323132332321123212   >>