C111113331333132322331333133313331331121111121133131133132333112113213311   >>    C11111333133313232233133313331333133112111112113313113313233311211321331   <<    C111113331333132322331333133313331331121111121133131133132333112113213313   >>      C111113331333132322331333133313331331121111121133131133132333112113213312   >>