101070: [AtCoder]ABC107 A - Train
Memory Limit:256 MB
Time Limit:2 S
Judge Style:Text Compare
Creator:
Submit:0
Solved:0
Description
Score : $100$ points
Problem Statement
There is an $N$-car train.
You are given an integer $i$. Find the value of $j$ such that the following statement is true: "the $i$-th car from the front of the train is the $j$-th car from the back."
Constraints
- $1 \leq N \leq 100$
- $1 \leq i \leq N$
Input
Input is given from Standard Input in the following format:
$N$ $i$
Output
Print the answer.
Sample Input 1
4 2
Sample Output 1
3
The second car from the front of a $4$-car train is the third car from the back.
Sample Input 2
1 1
Sample Output 2
1
Sample Input 3
15 11
Sample Output 3
5