He is active as the young leader of this organization.

It's a tradition in my family to go to the Thirteen Buddhas Pilgrimage every year.

He was drawing a tridecagon shape.

My birthday is on the thirty-first.

My father is thirty-five years old.

My father is thirty-eight years old.

It is thirty-seven kilometers to my house.

My father is thirty-nine years old.

My family consists of thirty-six people.

After finishing reading the Thirteen Classics, he felt deeply moved.