C2221232323213331311331333133313231323133313231123312331123313133211   >>    C222123232321333131133133313331323132313331323112331233112331313321   <<    C2221232323213331311331333133313231323133313231123312331123313133213   >>      C2221232323213331311331333133313231323133313231123312331123313133212   >>