C2221333133313331311233132313331333133313331311233132213232233221   >>    C222133313331333131123313231333133313331333131123313221323223322   <<    C2221333133313331311233132313331333133313331311233132213232233223   >>      C2221333133313331311233132313331333133313331311233132213232233222   >>