C2221232323213331311331333133313231323133313121121132311233132211   >>    C222123232321333131133133313331323132313331312112113231123313221   <<    C2221232323213331311331333133313231323133313121121132311233132213   >>      C2221232323213331311331333133313231323133313121121132311233132212   >>