public static void main(String[] args) throws Exception  {
        BufferedReader br=new BufferedReader(new InputStreamReader(System.in));
        String []s=br.readLine().split(" ");
        int n=Integer.parseInt(s[0]);
        int l=Integer.parseInt(s[1]);
        ArrayList<Integer> al=new ArrayList<>();
        s=br.readLine().split(" ");
        for(int i=0;i<n;i++) {
            al.add(Integer.parseInt(s[i]));
        }
        double max=0;
        int diff=0,near,far;
        Collections.sort(al);
        near=al.get(0);
        far=al.get(n-1);
        for(int i=1;i<al.size();i++) {
            diff=al.get(i)-al.get(i-1);
            if(max<diff)
                max=diff;
        }
        if(2*near>max)
            max=2*near;
        if(2*(l-far)>max)
            max=2*(l-far);
        System.out.println(near+" "+max/2);
    }