import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.PrintWriter;
import java.util.Arrays;
import java.util.InputMismatchException;

public class Main {
	static InputStream is;
	static PrintWriter out;
	static String INPUT = "";
	
	static void solve()
	{
		int n = ni(), L = ni();
		int[] t = na(n);
		Arrays.sort(t);
		double[] xcum = new double[n+1];
		double[] ycum = new double[n+1];
		for(int i = 0;i < n;i++){
			xcum[i+1] = xcum[i] + Math.cos(Math.PI*t[i]/L);
			ycum[i+1] = ycum[i] + Math.sin(Math.PI*t[i]/L);
		}
		// 180-theta-U = BAC
		// (180-(B-A))/2 + (180-(A-C))/2
		// 180-(B-C)/2
		
		double allx = 0, ally = 0;
		long all = 0;
		for(int i = 0;i < n;i++){
			double ax = Math.cos(2*Math.PI*t[i]/L);
			double ay = Math.sin(2*Math.PI*t[i]/L);
			for(int j = i+1;j < n-1;j++){
				double c = Math.cos(Math.PI*(t[i]+t[j])/L/2);
				double s = Math.sin(Math.PI*(t[i]+t[j])/L/2);
				
				double ox = 2*c*c-1;
				double oy = 2*s*c;
				double R = Math.sqrt((ax-ox)*(ax-ox)+(ay-oy)*(ay-oy));
				// ox+R*(tx-ox)
				// b -> (a+b)/2 + 180 - (180-(b-a)/2)/2 = 
				// a/4+3b/4+90
				
				double xs = R * (xcum[n] - xcum[j+1]);
				double ys = R * (ycum[n] - ycum[j+1]);
				double q = c; c = -s; s = q;
				double rxs = c * xs - s * ys;
				double rys = s * xs + c * ys;
//				double rot = Math.PI/2 + 2*Math.PI*t[i]/L/4 + 2*Math.PI*t[j]/L/4;
//				double rxs = Math.cos(rot) * xs - Math.sin(rot) * ys;
//				double rys = Math.sin(rot) * xs + Math.cos(rot) * ys;
				allx += rxs + ox * (n-j-1);
				ally += rys + oy * (n-j-1);
				all += n-j-1;
			}
		}
		out.printf("%.14f %.14f\n", allx/all, ally/all);
	}
	
	public static void main(String[] args) throws Exception
	{
//		int n = 3000, m = 1000000000;
//		Random gen = new Random();
//		StringBuilder sb = new StringBuilder();
//		sb.append(n + " ");
//		sb.append(m + " ");
//		for (int i = 0; i < n; i++) {
//			sb.append(gen.nextInt(m) + " ");
//		}
//		INPUT = sb.toString();

		
		long S = System.currentTimeMillis();
		is = INPUT.isEmpty() ? System.in : new ByteArrayInputStream(INPUT.getBytes());
		out = new PrintWriter(System.out);
		
		solve();
		out.flush();
		long G = System.currentTimeMillis();
		tr(G-S+"ms");
	}
	
	private static boolean eof()
	{
		if(lenbuf == -1)return true;
		int lptr = ptrbuf;
		while(lptr < lenbuf)if(!isSpaceChar(inbuf[lptr++]))return false;
		
		try {
			is.mark(1000);
			while(true){
				int b = is.read();
				if(b == -1){
					is.reset();
					return true;
				}else if(!isSpaceChar(b)){
					is.reset();
					return false;
				}
			}
		} catch (IOException e) {
			return true;
		}
	}
	
	private static byte[] inbuf = new byte[1024];
	static int lenbuf = 0, ptrbuf = 0;
	
	private static int readByte()
	{
		if(lenbuf == -1)throw new InputMismatchException();
		if(ptrbuf >= lenbuf){
			ptrbuf = 0;
			try { lenbuf = is.read(inbuf); } catch (IOException e) { throw new InputMismatchException(); }
			if(lenbuf <= 0)return -1;
		}
		return inbuf[ptrbuf++];
	}
	
	private static boolean isSpaceChar(int c) { return !(c >= 33 && c <= 126); }
//	private static boolean isSpaceChar(int c) { return !(c >= 32 && c <= 126); }
	private static int skip() { int b; while((b = readByte()) != -1 && isSpaceChar(b)); return b; }
	
	private static double nd() { return Double.parseDouble(ns()); }
	private static char nc() { return (char)skip(); }
	
	private static String ns()
	{
		int b = skip();
		StringBuilder sb = new StringBuilder();
		while(!(isSpaceChar(b))){
			sb.appendCodePoint(b);
			b = readByte();
		}
		return sb.toString();
	}
	
	private static char[] ns(int n)
	{
		char[] buf = new char[n];
		int b = skip(), p = 0;
		while(p < n && !(isSpaceChar(b))){
			buf[p++] = (char)b;
			b = readByte();
		}
		return n == p ? buf : Arrays.copyOf(buf, p);
	}
	
	private static char[][] nm(int n, int m)
	{
		char[][] map = new char[n][];
		for(int i = 0;i < n;i++)map[i] = ns(m);
		return map;
	}
	
	private static int[] na(int n)
	{
		int[] a = new int[n];
		for(int i = 0;i < n;i++)a[i] = ni();
		return a;
	}
	
	private static int ni()
	{
		int num = 0, b;
		boolean minus = false;
		while((b = readByte()) != -1 && !((b >= '0' && b <= '9') || b == '-'));
		if(b == '-'){
			minus = true;
			b = readByte();
		}
		
		while(true){
			if(b >= '0' && b <= '9'){
				num = num * 10 + (b - '0');
			}else{
				return minus ? -num : num;
			}
			b = readByte();
		}
	}
	
	private static long nl()
	{
		long num = 0;
		int b;
		boolean minus = false;
		while((b = readByte()) != -1 && !((b >= '0' && b <= '9') || b == '-'));
		if(b == '-'){
			minus = true;
			b = readByte();
		}
		
		while(true){
			if(b >= '0' && b <= '9'){
				num = num * 10 + (b - '0');
			}else{
				return minus ? -num : num;
			}
			b = readByte();
		}
	}
	
	private static void tr(Object... o) { if(INPUT.length() != 0)System.out.println(Arrays.deepToString(o)); }
}


Measured memory_bytes: 23892