Two tables must be printed below. They may or may not have borders.
| This header spans two columns | One column | |
|---|---|---|
| left align | left align | left align |
| left align, 2 cols | left align | |
The second header must span both header rows. The first data cell must span both data rows.
| center | center |
|---|---|
| center | |
| left | left |
| left |