Description

Nick is a diligent student who often conducts experiments. One day, while doing an experiment, he needed to swap a bottle of $10$ milliliters of red ink with a bottle of $20$ milliliters of blue ink, but he didn't know how. He asked Teacher Fox for help, who recited a spell "Abra" to assist Nick. Write a program to simulate this process.

Input Format

None.

Output Format

The first line outputs the amount of ink in the two bottles before the swap.
The second line outputs the amount of ink in the two bottles after the swap (in ml).

Sample

None

a=10 b=20
a=20 b=10