int n;
int a[100];
int b[100];

int main() {
    scanf("%d", &n);
    for (int i = 0; i < n; i++) {
        int a, b;
        scanf("%d%d", &a, &b);
        char bra = 0x3c;
        char cket = 0x3e;
        char ch;
        if (a / b == 0) {
            ch = bra;
        } else if (b / a == 0) {
            ch = cket;
        } else {
            ch = '=';
        }
        printf("%c\n", ch);
    }
    return 0;
}