#include "cstdio"
#include "climits"

int main() {
    int n;
    scanf("%d", &n);
    for (int i = 0; i != n; i++) {
        int a, b;
        scanf("%d%d", &a, &b);
        int hoge = a - b;
        if (hoge == 0) putchar(61);
        else if (hoge & INT_MIN) putchar(60);
        else putchar(62);
        puts("");
    }
}