题目：
计算|| 1 |
| 3 |
| 1 |
| 2 |
| 1 |
| 4 |
| 1 |
| 3 |
| 1 |
| 5 |
| 1 |
| 4 |
| 1 |
| 2004 |
| 1 |
| 2003 |
答案
解：原式=（| 1 |
| 2 |
| 1 |
| 3 |
| 1 |
| 3 |
| 1 |
| 4 |
| 1 |
| 2003 |
| 1 |
| 2004 |
| 1 |
| 2 |
| 1 |
| 3 |
| 1 |
| 3 |
| 1 |
| 4 |
| 1 |
| 2003 |
| 1 |
| 2004 |
| 1 |
| 2 |
| 1 |
| 2004 |
| 1001 |
| 2004 |
解：原式=（
| 1 |
| 2 |
| 1 |
| 3 |
| 1 |
| 3 |
| 1 |
| 4 |
| 1 |
| 2003 |
| 1 |
| 2004 |
| 1 |
| 2 |
| 1 |
| 3 |
| 1 |
| 3 |
| 1 |
| 4 |
| 1 |
| 2003 |
| 1 |
| 2004 |
| 1 |
| 2 |
| 1 |
| 2004 |
| 1001 |
| 2004 |
