def dis(a, b):
return (a[0]-b[0])**2 + (a[1]-b[1])**2
l = [[*map(int,input().split())] for i in range(int(input()))]
for i in range(int(input())):
i,d = map(int,input().split())
ans = -1
for p in l:
if dis(l[i-1], p) <= d*d:
ans += 1
print(ans)