C22212323232133313113313331333132313331323331123231323323232132211   >>    C2221232323213331311331333133313231333132333112323132332323213221   <<    C22212323232133313113313331333132313331323331123231323323232132213   >>      C22212323232133313113313331333132313331323331123231323323232132212   >>