#include<stdio.h>
int main()
{
	int z[100][100];
	int n,a,b,i,j,k,g,x,y;
	scanf("%d",&n);
	int s[10][4];
	for (i = 0; i < n; i++)
	{
		for (j = 0; j < 4; j++)
			scanf("%d", &s[i][j]);
		for (a = s[i][0],x=0;x<=s[i][2]; a--,x++)
			for (b = s[i][1],y=0; y<=s[i][3]; b++,y++)
				z[a][b] = i + 1;
	}
	scanf("%d%d", &k,&g);
	if (z[k][g]>=1&&z[k][g]<=n)
		printf("%d", z[k][g]);
	else
		printf("-1");
	return 0;
}

哪里不行？