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:
| Rank | Athlete | Nationality | Time | Notes |
| --- | --- | --- | --- | --- |
|  | Valeriy Borchin | Russia | 1:19:56 |  |
|  | Vladimir Kanaykin | Russia | 1:20:27 |  |
|  | Luis Fernando López | Colombia | 1:20:38 | SB |
| 4 | Wang Zhen | China | 1:20:54 |  |
| 5 | Stanislav Emelyanov | Russia | 1:21:11 |  |
| 6 | Kim Hyun-sub | South Korea | 1:21:17 |  |
| 7 | Ruslan Dmytrenko | Ukraine | 1:21:31 | SB |
| 8 | Yusuke Suzuki | Japan | 1:21:39 |  |
| 9 | Alex Schwazer | Italy | 1:21:50 | SB |
| 10 | Erick Barrondo | Guatemala | 1:22:08 |  |
| 11 | Chu Yafei | China | 1:22:10 |  |
| 12 | Sergey Morozov | Russia | 1:22:37 |  |
| 13 | Wang Hao | China | 1:22:49 |  |
| 14 | Matej Tóth | Slovakia | 1:22:55 |  |
| 15 | Eder Sánchez | Mexico | 1:23:05 |  |
| 16 | João Vieira | Portugal | 1:23:26 |  |
| 17 | Miguel Ángel López | Spain | 1:23:41 |  |
| 18 | Anton Kucmin | Slovakia | 1:23:57 |  |
| 19 | James Rendón | Colombia | 1:24:08 | SB |
| 20 | Horacio Nava | Mexico | 1:24:15 |  |
| 21 | Christopher Linke | Germany | 1:24:17 |  |
| 22 | Caio Bonfim | Brazil | 1:24:29 |  |
| 23 | Trevor Barron | United States | 1:24:33 |  |
| 24 | Rafał Augustyn | Poland | 1:24:47 |  |
| 25 | Byun Youngjun | South Korea | 1:24:48 |  |
| 26 | Hassanine Sebei | Tunisia | 1:25:17 |  |
| 27 | Jared Tallent | Australia | 1:25:25 |  |
| 28 | Recep Çelik | Turkey | 1:25:39 |  |
| 29 | Nazar Kovalenko | Ukraine | 1:25:50 |  |
| 30 | Gurmeet Singh | India | 1:26:34 |  |
| 31 | Babubhai Panucha | India | 1:26:53 |  |
| 32 | David Kimutai | Kenya | 1:27:20 | SB |
| 33 | Yerko Araya | Chile | 1:27:47 |  |
| 34 | Hédi Teraoui | Tunisia | 1:29:48 |  |
| 35 | Diego Flores | Mexico | 1:30:00 |  |
| 36 | Juan Manuel Cano | Argentina | 1:30:00 |  |
| 37 | Emerson Hernandez | El Salvador | 1:30:48 | SB |
| 38 | Ronald Quispe | Bolivia | 1:32:09 | PB |
|  | Moacir Zimmermann | Brazil | DSQ |  |
|  | Gustavo Restrepo | Colombia | DSQ |  |
|  | Giorgio Rubino | Italy | DSQ |  |
|  | Anatole Ibañez | Sweden | DSQ |  |
|  | Adam Rutter | Australia | DNF |  |
|  | Mauricio Arteaga | Ecuador | DNF |  |
|  | Paquillo Fernández | Spain | DNF |  |
|  | Park Chil-sung | South Korea | DNF |  |
Question:
how many competitors were from russia?
Answer:
4