The smaller one on the right is cinnamon.

There are two common types of cinnamon bought in the market.

One is thicker and flatter. The outer skin is brown.

The other is thin and rolled into finger-thick rolls that look like a root. The outer skin is yellow.

The latter is cinnamon.

The thick one in your picture is obviously the former.

And the thin one would be cinnamon.

Pictures of cinnamon are as follows:

Finished cinnamon