C111123313121111121111331323133313331333132333133313331322331333221221   >>    C11112331312111112111133132313331333133313233313331333132233133322122   <<    C111123313121111121111331323133313331333132333133313331322331333221223   >>      C111123313121111121111331323133313331333132333133313331322331333221222   >>