#include <cstdio>
#include <vector>
#include <climits>

int max(int a, int b) {
	return a > b ? a : b;
}

int min(int a, int b) {
	return a < b ? a : b;
}

int abs(int a) {
	return a > 0 ? a : -a;
}

int main() {
	int guards, incidents;
	scanf("%d %d", &guards, &incidents);
	
	std::vector<int> guardX(guards);
	std::vector<int> guardY(incidents);
	
	for (int i = 0; i < guards; i++) {
		scanf("%d %d", &(guardX[i]), &(guardY[i]));
	}
	
	for (int j = 0; j< incidents; j++) {
		int dist = INT_MAX;
		int incX, incY;
		scanf("%d %d", &incX, &incY);
		for (int i = 0; i < guards; i++) {
			int gdist = max(abs(guardX[i] - incX), abs(guardY[i] - incY));
			dist = min(dist, gdist);
		}
		printf("%d\n", dist);
	}
	
	return 0;
}