#include <cstdio>
#include <cstring>
#include <cmath>
#include <algorithm>
using namespace std;
int t, n, s, x, y;
inline bool Good(int a, int b, int c) {
    return (a*a + b*b < c*c);
}
inline int Check(int a, int b) {
    if(Good(a-170, b-30, 5)) return 3;
    if(Good(a-100, b-30, 10)) return 2;
    if(Good(a-30, b-30, 20)) return 1;
    return 0;
}
int main() {
    freopen("table2.in", "r", stdin);
    freopen("table2.out", "w", stdout);
    scanf("%d", &t);
    while(t--) {
        scanf("%d", &n);
        s = 0;
        for(int i=0; i<n; i++) {
            scanf("%d %d", &x, &y);
            s += Check(x, y);
        }
        printf("%d\n", s);
    }
    return 0;
}