t=int(input()) results=[] for x in range(t): n,m=map(int,input().split()) res=0 for i in range(n+1): #1yuan for j in range(n-i+1): #2yuan k=n-i-j #5yuan if i+2*j+5*k==m: res+=1 results.append(res) for i in results: print(i)