C31321211111333132331211113313331333133313331333133313331311233133312121   >>    C3132121111133313233121111331333133313331333133313331333131123313331212   <<    C31321211111333132331211113313331333133313331333133313331311233133312123   >>      C31321211111333132331211113313331333133313331333133313331311233133312122   >>