C11111333133313232233133313331333131133132233133313113313233121331   >>    C1111133313331323223313331333133313113313223313331311331323312133   <<    C11111333133313232233133313331333131133132233133313113313233121333   >>      C11111333133313232233133313331333131133132233133313113313233121332   >>