C2221232323213331311331333133313231323133313231123312311232233311   >>    C222123232321333131133133313331323132313331323112331231123223331   <<    C2221232323213331311331333133313231323133313231123312311232233313   >>      C2221232323213331311331333133313231323133313231123312311232233312   >>