How to typeset the calligraphy paper of 15 row 10 column in the calligraphy competition? What should I write?

I don't know if you are competing for hard pen calligraphy or soft pen calligraphy. Hard pen calligraphy has two formats, one is written line by line from left to right and from top to bottom, and the other is written from right to left and from top to bottom according to the calligraphy format. Soft pen is written from top to bottom and from right to left. If there is no specified content, you can choose a combination of Tang poetry, Song ci, Chairman Mao's poems and ancient inspirational prose.