| Number | Task description | Solution |
|---|---|---|
| 1 | Description | Solution |
| 2 | Description | Solution |
| 3 | Description | Solution |
| 4 | Description | Solution |
| 5 | soon | soon |
| 6 | Description | Solution |
| 7 | Description | Solution |
| 8 | Description | Solution |
| 9 | soon | soon |
| 10 | soon | soon |
| 11 | soon | soon |
| 12 | soon | soon |
| 13 | soon | soon |
| 14 | soon | soon |
| 15 | soon | soon |