#include <bits/stdc++.h> using namespace std; int main() { //假设 long long T,n,m; cin>>T; for (int i=0;i<T;i++){ cin>>n>>m; int count=0; for (int y=0;y<=m/2;y++){ for (int z=0;z<=m/5;z++){ if (y+4*z==m-n){ count++; } } } cout<<count<<endl; } return 0; }