s='no'>letters</span>, <span class='kw'>.chars</span> <span class='kw'>=</span> <span class='no'>letters</span>[<span class='fl'>1</span>:<span class='fl'>2</span>]), <span class='kw'>.chars</span> <span class='kw'>=</span> <span class='no'>letters</span>[<span class='fl'>1</span>:<span class='fl'>2</span>])</div><div class='output co'>#&gt;  [1] "abbabaabbab" "abbabbabbab" "abbabcabbab" "abbabdabbab" "abbabeabbab"
#&gt;  [6] "abbabfabbab" "abbabgabbab" "abbabhabbab" "abbabiabbab" "abbabjabbab"
#&gt; [11] "