#include <cstdio>
#include <cstdlib>
#include <cstring>
#include <iostream>
#include <algorithm>
#include <cmath>
using namespace std;
const double eps = 1e-7;
double absolute(double x){
    return (x>0)?x:(-x);
}
int main(){
    int a,b,c,d;
    while(scanf("%d%d%d%d",&a,&b,&c,&d)!=EOF){
        if(absolute(b*log10(a) - d*log10(c))<eps)printf("=\n");
        else{
            printf("%c\n",(b*log10(a) < d*log10(c))?'<':'>');
        }
    }
    return 0;
}