eolymp
Competitions

9 Round Spiral. Round 1. Step 9.

Subtraction

Find the difference of two nonnegative integers a and b.

Input

Two nonnegative integers a and b (ba1010000), each in the separate line.

Output

Print the difference between a and b.

Time limit 1 second
Memory limit 128 MiB
Input example #1
5
3
Output example #1
2