2017 JUST Programming Contest 3.0 H. Eyad and Math

H. Eyad and Math

time limit per test

2.0 s

memory limit per test

256 MB

input

standard input

output

standard output

Eyad was given a simple math problem, but since he is very bad at math he asked you to help him.

Given 4 numbers, a, b, c,
and d. Your task is to find whether ab is
less than cd or
not.

It is guaranteed that the two numbers above are never equal for the given input.

Input

The first line contains an integer T (1 ≤ T ≤ 105),
where T is the number of test cases.

Then T lines follow, each line contains four integers a, b, c,
and d (1 ≤ a, b, c, d ≤ 109).

Output

For each test case, print a single line containing "<" (without quotes), if ab is
less than cd.
Otherwise, print ">" (without quotes).

Example

input

2
9 2 5 3
3 4 4 3

output

<
>

#include<iostream>
#include<cstdio>
#include<cmath>
using namespace std;
#define ll long long
const int maxn=100005;

int main()
{
//    freopen("in.txt","r",stdin);
    int T;
    double a,b,c,d;
    scanf("%d",&T);
    double temp1,temp2;
    while(T--)
    {
        scanf("%lf%lf%lf%lf",&a,&b,&c,&d);
        temp1=b*log10(a),temp2=d*log10(c);
        if(temp1>=temp2)
            printf(">\n");
        else
            printf("<\n");
    }
}