C11111333133313232233133313331333131133131211113313113313332313231   >>    C1111133313331323223313331333133313113313121111331311331333231323   <<    C11111333133313232233133313331333131133131211113313113313332313233   >>      C11111333133313232233133313331333131133131211113313113313332313232   >>