C22212323232133313113313331333133313231323133313332233122323132211211231   >>    C2221232323213331311331333133313331323132313331333223312232313221121123   <<    C22212323232133313113313331333133313231323133313332233122323132211211233   >>      C22212323232133313113313331333133313231323133313332233122323132211211232   >>