Fraction Comparision（分数比较）

链接：https://ac.nowcoder.com/acm/contest/881/J
来源：牛客网
 

Bobo has two fractions xaxa and ybyb. He wants to compare them. Find the result.

输入描述:

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≤x,y≤10180≤x,y≤1018
* 1≤a,b≤1091≤a,b≤109
* There are at most 105105 test cases.

输出描述:

For each test case, print `=` if xa=ybxa=yb. Print `<` if xa` otherwise.

示例1

输入

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

输出

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<
>
=

#include

using namespace std;

void Output(long long a, long long b)
{		
	if(a"<