hdu 2566 统计硬币

//暴力！！！

#include<iostream>

using namespace std;


int main()
{
	int t;
	scanf("%d", &t);
	while(t--)
	{
		int i, j, k;
		int a, b, count = 0;
		scanf("%d%d", &a, &b);
		for( i=0; i <= b; i++ )
		{
			for( j=0; j <= b/2; j++ )
			{
				for( k=0; k <= b/5; k++ )
				{
					if(i + j*2 + k*5 == b && i + j + k == a)
						count++;
				}
			}
		}
		printf("%d\n", count);
	}
	return 0;
}