C111113331333132322331333133313331311331323133112111111331311331123311   >>    C11111333133313232233133313331333131133132313311211111133131133112331   <<    C111113331333132322331333133313331311331323133112111111331311331123313   >>      C111113331333132322331333133313331311331323133112111111331311331123312   >>