C2221333133313331311233132313331333133313131133133313232213232211   >>    C222133313331333131123313231333133313331313113313331323221323221   <<    C2221333133313331311233132313331333133313131133133313232213232213   >>      C2221333133313331311233132313331333133313131133133313232213232212   >>