C2221232323213331311331333133313231333132313221323131212123133311233131   >>    C222123232321333131133133313331323133313231322132313121212313331123313   <<    C2221232323213331311331333133313231333132313221323131212123133311233133   >>      C2221232323213331311331333133313231333132313221323131212123133311233132   >>