C2221333133313331311233132313331333133313331323121111123232233321   >>    C222133313331333131123313231333133313331333132312111112323223332   <<    C2221333133313331311233132313331333133313331323121111123232233323   >>      C2221333133313331311233132313331333133313331323121111123232233322   >>