C22212323232133313113313331333132313331323331123231323323231221313211   >>    C2221232323213331311331333133313231333132333112323132332323122131321   <<    C22212323232133313113313331333132313331323331123231323323231221313213   >>      C22212323232133313113313331333132313331323331123231323323231221313212   >>