|   first  |   second  |   third |
|----------|-----------|---------|
|        1 |         5 |       9 |
|        2 |         4 |       6 |
|        3 |         3 |       3 |
|        4 |         2 |       0 |
|        5 |         1 |      -3 |
|        6 |         0 |      -6 |

|   col-1 |   col-2 |   col-3 |   col-4 |
|---------|---------|---------|---------|
|       1 |       2 |       3 |       4 |
|       2 |       4 |       6 |       8 |
|       3 |       6 |       9 |      12 |
|       4 |       8 |      12 |      16 |
|       5 |      10 |      15 |      20 |
|       6 |      12 |      18 |      24 |
|       7 |      14 |      21 |      28 |
|       8 |      16 |      24 |      32 |

|   col-1 |   col-2 |   col-3 |
|---------|---------|---------|
|       1 |       2 |       3 |
|       2 |       4 |       6 |
|       3 |       6 |       9 |
|       4 |       8 |      12 |

|   col-1 |   col-2 |   col-3 |
|---------|---------|---------|
|       1 |       2 |       3 |
|       2 |       4 |       6 |
|       3 |       6 |       9 |
|       4 |       8 |      12 |

| first    | header   | header   |
|----------|----------|----------|
| first    | second   | third    |
| 1        | 2        | 3        |
| 3        | 4        | 5        |
| 3        | 6        | 7        |
| 8        | 9        | 9        |
| 10       | 9        | 9        |

| first (f)   | header (f)   | header (f)   |
|-------------|--------------|--------------|
| first (f)   | second       | third        |
| 1           | 2            | 3            |
| 3           | 4            | 5            |
| 3           | 6            | 7            |
| 8           | 9            | 9            |
| 10          | 9            | 9            |

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