C11111333133313232233133313331333131133132233133313113313112231321   >>    C1111133313331323223313331333133313113313223313331311331311223132   <<    C11111333133313232233133313331333131133132233133313113313112231323   >>      C11111333133313232233133313331333131133132233133313113313112231322   >>