content: package v102;
  
  import java.io.BufferedReader;
  import java.io.IOException;
  import java.io.InputStream;
  import java.io.InputStreamReader;
  import java.io.PrintWriter;
  import java.util.StringTokenizer;
  
  public class Railway_UVa10263 {
  
  	static final double INF = 1e9, EPS = 1e-9;
  	
  	public static void main(String[] args) throws IOException {
  		
  		Scanner sc = new Scanner(System.in);
  		PrintWriter out = new PrintWriter(System.out);
  		while(sc.ready())
  		{
  			Point m = new Point(sc.nextDouble(), sc.nextDouble());
  			int n = sc.nextInt();
  			Point[] points = new Point[n + 1];
  			for(int i = 0; i <= n; i++)
  				points[i] = new Point(sc.nextDouble(), sc.nextDouble());
  			Point ans = null;
  			double d = INF;
  			for(int i = 0; i < n; i++)
  			{
  				Point c = Point.closestPoint(m, points[i], points[i+1]);
  				double dist = c.dist(m);
  				if(dist < d)
  				{
  					ans = c;
  					d = dist;
  				}
  			}
  			out.printf("%.4f\n%.4f\n", ans.x, ans.y);
  		}
  		out.flush();
  
  
  	}
  	
  	static class Point
  	{
  		double x, y;
  		
  		Point(double a, double b)
  		{
  			x = a; y = b;
  		}
  		
  		double dist(Point p) { return Math.sqrt((p.x - x) * (p.x - x) + (p.y - y) * (p.y - y));}
  		
  		Point translate(Vector v)
  		{
  			return new Point(x + v.x, y + v.y);
  		}
  		
  		static Point closestPoint(Point p, Point a, Point b)
  		{
  			Vector ap = new Vector(a, p), ab = new Vector(a, b);
  			double u = ap.dot(ab) / ab.norm2();
  			
  			if(u < 0.0) return a;
  			if(u > 1.0) return b;
  			return a.translate(ab.scale(u));
  		}
  	}
  	
  	static class Vector
  	{
  		double x, y;
  		
  		Vector(Point p, Point q)
  		{
  			x = q.x - p.x;
  			y = q.y - p.y;
  		}
  		
  		Vector(double a, double b)
  		{
  			x = a; y = b;
  		}
  		
  		double dot(Vector v)
  		{
  			return x * v.x + y * v.y;
  		}
  		
  		double norm2()
  		{
  			return x * x + y * y;
  		}
  		Vector scale(double u)
  		{
  			return new Vector(x * u, y * u);
  		}
  		
  	}
  	
  	static class Scanner 
  	{
  		StringTokenizer st;
  		BufferedReader br;
  
  		public Scanner(InputStream s){	br = new BufferedReader(new InputStreamReader(s));}
  
  		public String next() throws IOException 
  		{
  			while (st == null || !st.hasMoreTokens()) 
  				st = new StringTokenizer(br.readLine());
  			return st.nextToken();
  		}
  
  		public int nextInt() throws IOException {return Integer.parseInt(next());}
  		
  		public long nextLong() throws IOException {return Long.parseLong(next());}
  
  		public String nextLine() throws IOException {return br.readLine();}
  		
  		public double nextDouble() throws IOException
  		{
  			String x = next();
  			StringBuilder sb = new StringBuilder("0");
  			double res = 0, f = 1;
  			boolean dec = false, neg = false;
  			int start = 0;
  			if(x.charAt(0) == '-')
  			{
  				neg = true;
  				start++;
  			}
  			for(int i = start; i < x.length(); i++)
  				if(x.charAt(i) == '.')
  				{
  					res = Integer.parseInt(sb.toString());
  					sb = new StringBuilder("0");
  					dec = true;
  				}
  				else
  				{
  					sb.append(x.charAt(i));
  					if(dec)
  						f *= 10;
  				}
  			res += Integer.parseInt(sb.toString()) / f;
  			return res * (neg?-1:1);
  		}
  		
  		public boolean ready() throws IOException {return br.ready();}
  
  
  	}
  }
  