题目描述

Bobo has two fractions $\frac{x}{a}$​ and $\frac{y}{b}$​. He wants to compare them. Find the result.

输入格式

The input consists of several test cases and is terminated by end-of-file.

Each test case contains four integers x, a, y, b.

• $0 \leq x, y \leq 10^{18}$
• $1 \leq a, b \leq 10^9$
• There are at most $10^5$ test cases.

输出格式

For each test case, print = if $\frac{x}{a} = \frac{y}{b}$​. Print < if $\frac{x}{a} < \frac{y}{b}$ . Print > otherwise.

样例

样例输入

1 2 1 1
1 1 1 2
1 1 1 1

样例输出

<
>
=