#include <bits/stdc++.h>
using namespace std;

int main() {
	int s; scanf("%d", &s);
	for (int z = 0; z < s; ++z) {
		int x, y; scanf("%d%d", &x, &y);
		if (x == y) {
			printf("%d\n", x-1);
			continue;
		}
		if (x < y) swap(x, y);
		int ans = 0;
		for (int i = 1; i*i <= x-y; ++i) {
			if ((x-y) % i != 0) continue;
			if ((x+y) % (i+2) == 0) {
				int p = (x-y) / i; int q = (x+y) / (i+2);
				if (p < q and p%2 == q%2) ans++;
			}
			if (i*i == x-y) continue;
			int j = (x-y)/i;
			if ((x+y) % (j+2) == 0) {
				int p = (x-y) / j; int q = (x+y) / (j+2);
				if (p < q and p%2 == q%2) ans++;
			}
		}
		printf("%d\n", ans);
	}
	return 0;
}