9413: ABC209 —— A - Counting
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Description
How many integers not less than $A$ and not more than $B$ are there?
Input
Input is given from Standard Input in the following format:
```
$A$ $B$
```
```
$A$ $B$
```
Output
Print the number of integers not less than $A$ and not more than $B$.
Constraints
- $1 \leq A \leq 100$
- $1 \leq B \leq 100$
- $A$ and $B$ are integers.
- $1 \leq B \leq 100$
- $A$ and $B$ are integers.
Sample 1 Input
2 4
Sample 1 Output
3
We have three integers not less than 2 and not more than 4: 2, 3, 4, so we should print 3.
Sample 2 Input
10 100
Sample 2 Output
91
Sample 3 Input
3 2
Sample 3 Output
0
We have no integers not less than 3 and not more than 2, so we should print 0.