C11111333133313232233133313331333133112323131121211113313113313331313111   >>    C1111133313331323223313331333133313311232313112121111331311331333131311   <<    C11111333133313232233133313331333133112323131121211113313113313331313113   >>      C11111333133313232233133313331333133112323131121211113313113313331313112   >>