C22212323232133313113313331333132313331323331123231323323232132123121   >>    C2221232323213331311331333133313231333132333112323132332323213212312   <<    C22212323232133313113313331333132313331323331123231323323232132123123   >>      C22212323232133313113313331333132313331323331123231323323232132123122   >>