C2221333133313331311233132313331333133313331322231333131121123311   >>    C222133313331333131123313231333133313331333132223133313112112331   <<    C2221333133313331311233132313331333133313331322231333131121123313   >>      C2221333133313331311233132313331333133313331322231333131121123312   >>