Codeforces 987B. High School: Become Human（1ni）（数学水题）

B. High School: Become Human

time limit per test

1 second

memory limit per test

256 megabytes

input

standard input

output

standard output

Year 2118. Androids are in mass production for decades now, and they do all the work for humans. But androids have to go to school to be able to solve creative tasks. Just like humans before.

It turns out that high school struggles are not gone. If someone is not like others, he is bullied. Vasya-8800 is an economy-class android which is produced by a little-known company. His design is not perfect, his characteristics also could be better. So he is bullied by other androids.

One of the popular pranks on Vasya is to force him to compare xyxy with yxyx. Other androids can do it in milliseconds while Vasya's memory is too small to store such big numbers.

Please help Vasya! Write a fast program to compare xyxy with yxyx for Vasya, maybe then other androids will respect him.

Input

On the only line of input there are two integers xx and yy (1≤x,y≤1091≤x,y≤109).

Output

If xy<yxxy<yx, then print '<' (without quotes). If xy>yxxy>yx, then print '>' (without quotes). If xy=yxxy=yx, then print '=' (without quotes).

Examples

input

Copy

5 8

output

Copy

>

input

Copy

10 3

output

Copy

<

input

Copy

6 6

output

Copy

=

Note

In the first example 58=5⋅5⋅5⋅5⋅5⋅5⋅5⋅5=39062558=5⋅5⋅5⋅5⋅5⋅5⋅5⋅5=390625, and 85=8⋅8⋅8⋅8⋅8=3276885=8⋅8⋅8⋅8⋅8=32768. So you should print '>'.

In the second example 103=1000<310=59049103=1000<310=59049.

In the third example 66=46656=6666=46656=66.

字比较丑，哈哈哈哈（但是问题不大）

看图

代码：注意比大小 不要 直接比较，因为C浮点比较会有问题假如数据刁钻的话

用两个数相减来比较

#include<bits/stdc++.h>
using namespace std;
int main()
{
	double  a,b,x,y;
	cin >> a >> b;
	x = a * log(b);
	y = b * log(a);
	if(x-y>0) cout << "<" << endl;
	else if(x-y<0) cout << ">" << endl;
	else cout << "=" << endl;
 }