Go: package main

import (
	"bufio"
	"os"
	"math"
	"strings"
	"strconv"
	"fmt"
)

var scanner = bufio.NewScanner(os.Stdin)

const (
	INF = 0x7FFFFFFF
	EPS = 1e-10
)

type Point struct {
	x, y float64
}
func (p *Point) plus(q *Point) *Point {
	return &Point{p.x + q.x, p.y + q.y}
}
func (p *Point) minus(q *Point) *Point {
	return &Point{p.x - q.x, p.y - q.y}
}
func (p *Point) multi(a float64) *Point {
	return &Point{p.x * a, p.y * a}
}
func (p *Point) div(a float64) *Point {
	return &Point{p.x / a, p.y / a}
}
func (p *Point) abs() float64 {
	return math.Sqrt(p.norm())
}
func (p *Point) norm() float64 {
	return p.x*p.x + p.y*p.y
}
func (p *Point) isLessThan(q *Point) bool {
	if p.x != q.x {
		return p.x < q.x && p.y < q.y
	}
	return true
}
func (p *Point) isEqual(q *Point) bool {
	return math.Abs(p.x - q.x) < EPS && math.Abs(p.y - q.y) < EPS
}

type Segment struct {
	p1, p2 *Point
}
func (s *Segment) norm() float64 {
	return (s.p2.x - s.p1.x)*(s.p2.x - s.p1.x) +
		(s.p2.y - s.p1.y)*(s.p2.y - s.p1.y)
}
func (s *Segment) abs() float64 {
	return math.Sqrt(s.norm())
}

func norm(a *Point) float64 {
	return a.x*a.x + a.y*a.y
}

func abs(a *Point) float64 {
	return math.Sqrt(norm(a))
}

func polar(a, r float64) *Point {
	return &Point{math.Cos(r)*a, math.Sin(r)*a}
}

func getDistance(a, b *Point) float64 {
	return abs(a.minus(b))
}

func dot(a, b *Point) float64 {
	return a.x*b.x + a.y*b.y
}

func cross(a, b *Point) float64 {
	return a.x*b.y - a.y*b.x
}

func getDistanceLP(s Segment, p *Point) float64 {
	return cross(s.p2.minus(s.p1), p.minus(s.p1))/ abs(s.p2.minus(s.p1))
}

func getDistanceSP(s Segment, p *Point) float64 {
	if dot(s.p2.minus(s.p1), p.minus(s.p1)) < 0 {
		return abs(p.minus(s.p1))
	}
	if dot(s.p1.minus(s.p2), p.minus(s.p2)) < 0 {
		return abs(p.minus(s.p2))
	}
	return getDistanceLP(s, p)
}

func main() {
	for scanner.Scan() {
		buf := strings.Split(scanner.Text(), " ")
		R, _ := strconv.Atoi(buf[0])
		N, _ := strconv.Atoi(buf[1])
		if R == 0 && N == 0 {
			break
		}
		p := make([]*Point, N)
		r := make([]float64, N)
		v := make([]float64, N)
		d := make([]float64, N)
		nd := make([]float64, N)
		die := make([]bool, N)
		for i := 0; i < N; i++ {
			scanner.Scan()
			buf_ := strings.Split(scanner.Text(), " ")
			_x, _ := strconv.ParseFloat(buf_[0], 64)
			_y, _ := strconv.ParseFloat(buf_[1], 64)
			_r, _ := strconv.ParseFloat(buf_[2], 64)
			_v, _ := strconv.ParseFloat(buf_[3], 64)
			tmp := &Point{_x, _y}
			p[i] = tmp
			r[i] = _r
			v[i] = _v
			nd[i] = getDistance(p[i], &Point{0, 0})
			d[i] = getDistance(p[i], &Point{0, 0})
			die[i] = false
		}
		for {
			for i := 0; i < N; i++ {
				nd[i] = math.Max(float64(R), nd[i]-v[i])
			}
			mini := float64(INF)
			id := -1
			for i := 0; i < N; i++ {
				if die[i] {
					continue
				}
				if nd[i] < EPS+float64(R) {
					continue
				}
				if nd[i] > mini {
					continue
				}
				mini = nd[i]
				id = i
			}
			if id == -1 {
				break
			}
			s := Segment{p[id], p[id]}
			s.p1 = s.p1.div(d[id])
			s.p1 = s.p1.multi(float64(R))
			s.p2 = s.p2.div(d[id])
			s.p2 = s.p2.multi(10000000.0)
			for i := 0; i < N; i++ {
				if nd[i] < EPS + float64(R) {
					continue
				}
				a := p[i]
				a = a.div(d[i])
				a = a.multi(nd[i])
				if getDistanceSP(s, a) < EPS + r[i] {
					die[i] = true
				}
			}
		}
		ans := 0
		for i := 0; i < N; i++ {
			if !die[i] {
				ans++
			}
		}
		fmt.Println(ans)
	}
}

C++: #include <cstdlib>
#include <cmath>
#include <climits>
#include <cfloat>
#include <map>
//#include <utility>
#include <set>
#include <iostream>
//#include <memory>
#include <string>
#include <vector>
#include <algorithm>
//#include <functional>
#include <sstream>
//#include <deque>
#include <complex>
#include <stack>
#include <queue>
#include <cstdio>
//#include <cctype>
#include <cstring>
//#include <ctime>
#include <iterator>
#include <bitset>
//#include <numeric>
//#include <list>
//#include <iomanip>

#if __cplusplus >= 201103L
#include <array>
#include <tuple>
#include <initializer_list>
#include <unordered_set>
#include <unordered_map>
#include <forward_list>

#define cauto const auto&
#else

#endif

using namespace std;


namespace{
typedef long long ll;
typedef pair<int,int> pii;
typedef pair<ll,ll> pll;

typedef vector<int> vint;
typedef vector<vector<int> > vvint;
typedef vector<long long> vll, vLL;
typedef vector<vector<long long> > vvll, vvLL;

#define VV(T) vector<vector< T > >

template <class T>
void initvv(vector<vector<T> > &v, int a, int b, const T &t = T()){
    v.assign(a, vector<T>(b, t));
}

template <class F, class T>
void convert(const F &f, T &t){
    stringstream ss;
    ss << f;
    ss >> t;
}


#define reep(i,a,b) for(int i=(a);i<(b);++i)
#define rep(i,n) reep((i),0,(n))
#define ALL(v) (v).begin(),(v).end()
#define PB push_back
#define fi first
#define se second
#define mkp make_pair
#define RALL(v) (v).rbegin(),(v).rend()


// #define MOD 1000000007LL
// #define EPS 1e-8
// static const int INF=1<<24;

#define double long double
const double EPS = 1e-8;
const double INF = 1e12;
const double PI = asin(0.5)*6;
typedef complex<double> P;

#define X real()
#define Y imag()

#define Curr(P,i) P[(i)%P.size()]
#define Next(P,i) P[(i+1)%P.size()]
#define Prev(P,i) P[(i+P.size()-1)%P.size()]

namespace std{
  bool operator<(const P a,const P b){
    return a.X != b.X ? a.X < b.X : a.Y < b.Y;
  }
}
//gaiseki
double cross(const P a,const P b){
  return (conj(a)*b).imag();
}
//naiseki
double dot(const P a,const P b){
  return (conj(a)*b).real();
}
// TODO make graph (20)
int ccw(P a,P b,P c){
  b-=a;
  c-=a;
  if(cross(b,c)>0)    return +1;//counter clockwise
  if(cross(b,c)<0)    return -1;//clockwise
  if(dot(b,c)<0)      return +2;// c--a--b
  if(norm(b)<norm(c)) return -2;// a--b--c
                      return  0;// a--c--b(or b==c)
}

struct L : public vector<P>{
  L(){};
  L(const P a,const P b){
    push_back(a),push_back(b);
  }
};
typedef L S;
typedef vector<P> G;

struct C{
  P p;double r;
  C(){};
  C(const P p,double r): p(p),r(r){}
};



//??´?????¨????????¢???
//??????????????????????????????????????????
P projection(L a,P p){
  double t = dot(p-a[0],a[0]-a[1])/norm(a[0]-a[1]);
  return a[0] + t*(a[0]-a[1]);
}
//???????§°??????
// P reflection(L a,P p){
  // return p + 2.0 * (projection(a,p)-p);
// }




//????????????
//TODO CP(??????) CL CS (0)
bool isCrossLL(L a,L b){
  return 
    abs(cross(a[1]-a[0],b[1]-b[0])) > EPS
    || abs(cross(a[1]-a[0],b[0]-a[0])) < EPS ;
}
bool isCrossLS(L a,S b){
  return 
    cross(a[1]-a[0],b[0]-a[0]) 
    * cross(a[1]-a[0],b[1]-a[0]) < EPS;
}
bool isCrossLP(L l,P p){
  return abs(cross(l[1]-p,l[0]-p)) < EPS;
}
bool isCrossSS(S a,S b){
  return
    ccw(a[0],a[1],b[0])
    * ccw(a[0],a[1],b[1]) <= 0
    &&
    ccw(b[0],b[1],a[0])
    * ccw(b[0],b[1],a[1]) <= 0;
}
bool isCrossSP(S a,P p){
  return abs(a[0]-p)+abs(a[1]-p)-abs(a[0]-a[1]) < EPS;
}


// ?????¢ CP CL CS ???(distXP(x,c.p)-c.r)
double distPP(P a,P b){
  return abs(a-b);
}
double distLP(L a,P p){
  return abs(p-projection(a,p));
}
double distLL(L a,L b){
  return isCrossLL(a,b) ? 0 : distLP(a,b[0]);
}
double distLS(L a,S b){
  return isCrossLS(a,b) ? 0 : min(distLP(a,b[0]),distLP(a,b[1]));
}
// double distSP(S a,P p){
  // const P r = projection(a,p);
  // return isCrossSP(a,r) ? abs(p-r) : min(abs(a[0]-p),abs(a[1]-p));
// }
double distSP(S a,P p){
  if(dot(a[1]-a[0],p-a[0])<EPS) return abs(p-a[0]);
  if(dot(a[0]-a[1],p-a[1])<EPS) return abs(p-a[1]);
  return abs(cross(a[1]-a[0],p-a[0]))/abs(a[1]-a[0]);
}
double distSS(S a,S b){
  return isCrossSS(a,b)?0:
    min(
      min(distSP(a,b[0]),distSP(a,b[1])),
      min(distSP(b,a[0]),distSP(b,a[1]))
    );
}

//??????????????????
bool isCrossCP(C a,P p){
  return abs(a.p-p)-a.r<=EPS;
}
bool isCrossCL(C a,L l){
  return distLP(l,a.p)-a.r<EPS;
}
double distSP_MAX(S a,P p){
  return max(abs(a[0]-p),abs(a[1]-p));
}
bool isCrossCS(C a,S s){
  return distSP(s,a.p)-a.r<EPS;
}
bool isCrossCC(C a,C b){//??\?????????????????????
  return abs(a.p-b.p)-(a.r+b.r) <= EPS;
}



void mainmain(){
	int N;
	double R;
	while(cin>>R>>N,N){
		typedef pair<C,double> ufo;
		vector<ufo> v(N);
		rep(i,N){
			double a,b;
			cin>>a>>b;
			v[i].fi.p=P(a,b);
			cin>>a>>b;
			v[i].fi.r=a;
			v[i].se=b;
		}
		vector<ufo> w=v;
		int cnt=0;
		int loop=1;
		bool f=false;
		while(v.size()){
			int x1=-1;
			double x2=1e10;
			if(f) rep(i,v.size()){
				if(R-abs(v[i].fi.p)>-EPS) continue;
				if(x2>abs(v[i].fi.p)){
					x1=i;
					x2=abs(v[i].fi.p);
				}
			}
			// cout<<x1<<" "<<x2<<endl;
			if(f) if(x1==-1){
				break;
			}
			if(f) if(x1!=-1){
				P t1(v[x1].fi.p.X*1e6,v[x1].fi.p.Y*1e6);
				S tmp(P(0.0,0.0),t1);
				rep(i,v.size()){
					if(R-abs(v[i].fi.p)>-EPS) continue;
					if(isCrossCS(v[i].fi,tmp)){
						cnt++;
						v.erase(v.begin()+i);
						w.erase(w.begin()+i);
						i--;
					}
				}
			}
			rep(i,v.size()){
				if(v[i].se-abs(v[i].fi.p)>-EPS){
					v.erase(v.begin()+i);
					w.erase(w.begin()+i);
					i--;
				}
			}
			rep(i,v.size()){
				P tmp(-w[i].fi.p.X*w[i].se*loop/abs(w[i].fi.p),-w[i].fi.p.Y*w[i].se*loop/abs(w[i].fi.p));
				v[i].fi.p=w[i].fi.p+tmp;
				// cout<<v[i].fi.p.X<<" "<<v[i].fi.p.Y<<" "<<v[i].fi.r<<" "<<v[i].se<<endl;
			}
			loop++;
			f=true;
		}
		cout<<N-cnt<<endl;
	}
}



}
main() try{
    mainmain();
}
catch(...){
}