C2221333133313331311233132313331333133313131133133313331211211331333132223221   >>    C222133313331333131123313231333133313331313113313331333121121133133313222322   <<    C2221333133313331311233132313331333133313131133133313331211211331333132223223   >>      C2221333133313331311233132313331333133313131133133313331211211331333132223222   >>