This problem can be solved with a recursive approach.

The Omicron variant is spreading all over the world.

This lumber grade is the highest quality.

He utilized his resourcefulness to the fullest to succeed in business.

Cyrus is an important figure in history.

I make okonomiyaki with a bairaku.

I'm not in the mood to work.

He was excited watching the soccer game.

He is leading a leisurely life.

Her smile is very natural, and it feels comfortable.