Poetry about the number of days in the big moon

There is a poem that remembers the size of the moon:

135780 wax

Thirty-one days is not bad.

The rest is thirty days.

Only February 28th.

This is mainly for the convenience of distinguishing and remembering months. The wax in the first sentence represents December. So there are seven big months and five small months. I should say seven months old and five months young.