C11111211113313112113313331333133313133313232233133313112113223231   >>    C1111121111331311211331333133313331313331323223313331311211322323   <<    C11111211113313112113313331333133313133313232233133313112113223233   >>      C11111211113313112113313331333133313133313232233133313112113223232   >>