C11111333133313232233133313331333131123313221211113313112113113311   >>    C1111133313331323223313331333133313112331322121111331311211311331   <<    C11111333133313232233133313331333131123313221211113313112113113313   >>      C11111333133313232233133313331333131123313221211113313112113113312   >>