C1111233131211111211113313331333133313331333133313331322331333132313113311311   >>    C111123313121111121111331333133313331333133313331333132233133313231311331131   <<    C1111233131211111211113313331333133313331333133313331322331333132313113311313   >>      C1111233131211111211113313331333133313331333133313331322331333132313113311312   >>