#include<iostream>
#include<cmath>
using namespace std;
int main(){
 int n;
 cin>>n;
 while(n--){
  int t;
  cin>>t;
  int points=0;
  while(t--){
   int a,b;
   cin>>a>>b;
   if((a>10&&a<50)&&(b>10&&b<50)){
    if(pow(a-30,2)+pow(b-30,2)<400)
    points+=1;
   }
   if((a>90&&a<110)&&b>20&&b<40) {
    if(pow(a-100,2)+pow(b-30,2)<100) points+=2;
   }
   if((a>165&&a<175)&&b>25&&b<35){
    if(pow(a-170,2)+pow(b-30,2)<25) points+=3;
   }
  }
  cout<<points<<endl;
 }
 return 0;
}

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