答案就是：两边同时套上一个log

#include <bits/stdc++.h>
typedef long long ll;
using namespace std;

int main(){
    ll x,y;
    double a,b;
    scanf("%lld %lld",&x,&y);
    a=y*log(x);
    b=x*log(y);
    if(a>b) puts(">");
    else if(a<b) puts("<");
    else puts("=");
}