Complex Root — Eolymp

Input

The first line contains integers $a$ , $b$ , $n$ ( $- 1 0^{18} \leq a, b \leq 1 0^{18}$ -10^{18} \le a, b \le 10^{18}, $1 \leq n \leq 100$ 1 \le n \le 100). The second line contains integers $c$ , $d$ and $m$ ( $- 1 0^{18} \leq c, d \leq 1 0^{18}$ -10^{18} \le c, d \le 10^{18}, $1 \leq m \leq 100$ 1 \le m \le 100). It is guaranteed that $a^{2} + b^{2} > 0$ a^2 + b^2 > 0 and $c^{2} + d^{2} > 0$ c^2 + d^2 > 0.

Output

Print one integer: the answer to the problem.

Examples

Example 1

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Example 2

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