How to create a table with two new columns based on the two tables of values in Power Query

I have one table with one column called stores:

Stores

A

B

C

And I have another table called channels:

Channels

1

2

3

I need to create a new table with two columns "Stores" and "Channels" like this in Power Query

Stores      Channels

A              1

A              2

A              3

B              1

B              2

B              3

C              1

C              2

C              3

For each store, there will be 3 channels. 

Is there any way to achieve this in Power Query? Thank you!