C2221333133313331311233132313331333133313232123313331323221313331   >>    C222133313331333131123313231333133313331323212331333132322131333   <<    C2221333133313331311233132313331333133313232123313331323221313333   >>      C2221333133313331311233132313331333133313232123313331323221313332   >>