s='op'>(</span><span class='fu'><a href='https://rdrr.io/r/base/c.html'>c</a></span><span class='op'>(</span><span class='st'>"t1"</span>, <span class='st'>"t2"</span>, <span class='st'>"t3"</span><span class='op'>)</span>, <span class='st'>"x"</span>, <span class='fu'><a href='https://rdrr.io/r/base/c.html'>c</a></span><span class='op'>(</span><span class='st'>"x"</span>, <span class='st'>"xq"</span><span class='op'>)</span><span class='op'>)</span>,
  starts <span class='op'>=</span> <span class='st'>"2 1