Problem Statement

On a two-dimensional coordinate plane where the $\mathrm{x}$ axis points to the right and the $\mathrm{y}$ axis points up, we have a regular $N$-gon with $N$ vertices $p_0, p_1, p_2, \dots, p_{N - 1}$. Here, $N$ is guaranteed to be even, and the vertices $p_0, p_1, p_2, \dots, p_{N - 1}$ are in counter-clockwise order. Let $(x_i, y_i)$ denotes the coordinates of $p_i$. Given $x_0$, $y_0$, $x_{\frac{N}{2}}$, and $y_{\frac{N}{2}}$, find $x_1$ and $y_1$.

Constraints

• $4 \le N \le 100$
• $N$ is even.
• $0 \le x_0, y_0 \le 100$
• $0 \le x_{\frac{N}{2}}, y_{\frac{N}{2}} \le 100$
• $(x_0, y_0) \neq (x_{\frac{N}{2}}, y_{\frac{N}{2}})$
• All values in input are integers.

Input

Input is given from Standard Input in the following format:

N
x_0 y_0
x_{\frac{N}{2}} y_{\frac{N}{2}}

Output

Print $x_1$ and $y_1$ in this order, with a space in between. Your output is considered correct when, for each value printed, the absolute or relative error from our answer is at most $10^{-5}$.