| Index | Description |
|---|---|
| 0 | Top: leftmost |
| 1 | Top: first from the left |
| 2 | Top: first from the right |
| 3 | Top: rightmost |
| 4 | Bottom: leftmost |
| 5 | Bottom: first from the left |
| 6 | Bottom: first from the right |
| 7 | Bottom: rightmost |
| Index | Description |
|---|---|
| 0 | Top: leftmost |
| 1 | Top: first from the left |
| 2 | Top: first from the right |
| 3 | Top: rightmost |
| 4 | Bottom: leftmost |
| 5 | Bottom: first from the left |
| 6 | Bottom: first from the right |
| 7 | Bottom: rightmost |