# Spiral

Very easy

Execution time limit is 1 second

Runtime memory usage limit is 128 megabytes

Numbers from 1 to `n^2`

are written in a square matrix of size n x n in a spiral starting from the top left cell in a clockwise direction, as shown in the figure. Find a number which is located in the i-th row and j-th column.

## Input

Three natural numbers n, i, j (1 ≤ i, j ≤ n ≤ 100).

## Output

Print the number that has the coordinates i, j.

## Examples

Input #1

Answer #1

Submissions 6K

Acceptance rate 52%