int main(){
int n;
scanf("%d", &n);
while(n--){
int a,b;
scanf("%d%d", &a, &b);
a -= b;
if(a==0)puts("=");
else{
unsigned x = (unsigned)a;
if(x&2147483648u)putchar(60);
else putchar(62);
puts("");
}
}
return 0;
}