C31321211111333132331211113313331333133313331333133313331333133112323133312121   >>    C3132121111133313233121111331333133313331333133313331333133313311232313331212   <<    C31321211111333132331211113313331333133313331333133313331333133112323133312123   >>      C31321211111333132331211113313331333133313331333133313331333133112323133312122   >>