C11111333133313232233133313331333133112323131121211113313113313131221   >>    C1111133313331323223313331333133313311232313112121111331311331313122   <<    C11111333133313232233133313331333133112323131121211113313113313131223   >>      C11111333133313232233133313331333133112323131121211113313113313131222   >>