#include "cstdio"

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