#define NOMINMAX
#define TEST_MODE true

#define _CRT_SECURE_NO_WARNINGS
#define _USE_MATH_DEFINES

#include "bits/stdc++.h"

int N;

void out(int v) {
	char c = (char)v;
	printf("%c\n", c);
}

using namespace std;

signed main()
{
	scanf("%d", &N);
	//fprintf(stderr, "%d\n", N);
	for (int i = 0; i != N; i += 1) {
		int a, b; scanf("%d %d", &a, &b);
		int c = a - b;
		string s = to_string(c);
		if (s[0] == '0') out(61);
		else if (s[0] == '-') out(60);
		else out(62);
	}
	return 0;
}