Please read the following table in Markdown format and then answer the question according to the table. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
| Tournament | 1998 | 1999 | 2000 | 2001 | 2002 | 2003 | 2004 | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 | 2012 | 2013 |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| Australian Open | 2R | 3R | 4R | QF | A | W | A | W | 3R | W | QF | W | W | A | 4R | QF |
| French Open | 4R | 3R | A | QF | W | SF | QF | A | A | QF | 3R | QF | QF | A | 1R | W |
| Wimbledon | 3R | A | SF | QF | W | W | F | 3R | A | QF | F | W | W | 4R | W | 4R |
| US Open | 3R | W | QF | F | W | A | QF | 4R | 4R | QF | W | SF | A | F | W | W |
| Win–Loss | 8–4 | 11–2 | 12–3 | 18–4 | 21–0 | 19–1 | 14–3 | 12–2 | 5–2 | 19–3 | 19–3 | 23–2 | 18–1 | 9–2 | 17–2 | 21–2 |
Question:
what is 2013 when 2001 is qf and 2011 is 4r?
Answer:
4R