Problem A
Ready, Set, Go!
Greeetings, and welcome to the UAPC! We will start off with a straightforward problem. Trust me, they will get more interesting as you work through the problem set.
I need some help, at the start of the contest I shouted Ready, Set, Go! But I am worried some people did not hear me. I will tell you how many teams are at the contest and how many teams I am certain heard me. Please tell me how many people might not have heard me.
Input
Input consists of a single line with two integers $T, H$ where $0 \leq H \leq T \leq 100$. Here, $T$ is the number of teams competing and $H$ is the number of teams I am certain heard me say Ready, Set, Go!
Output
Output a single integer indicating the number of teams that might not have heard me say Ready, Set, Go!
| Sample Input 1 | Sample Output 1 |
|---|---|
21 18 |
3 |
| Sample Input 2 | Sample Output 2 |
|---|---|
10 10 |
0 |
