import java.io.*;
import java.util.*;
import java.math.BigInteger;

public class Main {
    static void solve() {
        int n = in.nextInt();
        int odd=0,even=0;
        for(int i=0;i<n;i++) {
            int x =  in.nextInt();
            if((x&1)==1) odd++;
            else even++;
        } 
        if(odd>=3||(odd>=1&&even>=2)) out.println("YES");
        else out.println("NO");
    }

    public static void main(String[] args) {
        solve();
        out.flush();
    }

    static FastReader in = new FastReader();
    static PrintWriter out = new PrintWriter(System.out);

    static class FastReader {
        static BufferedReader br;
        static StringTokenizer st;

        FastReader() {
            br = new BufferedReader(new InputStreamReader(System.in));
        }

        String next() {
            String str = "";
            while(st==null||!st.hasMoreElements()) {
                try {
                    str = br.readLine();
                }catch(IOException e) {
                    throw new RuntimeException(e);
                }
                st = new StringTokenizer(str);
            }
            return st.nextToken();
        }

        int nextInt() {
            return Integer.parseInt(next());
        }

        double nextDouble() {
            return Double.parseDouble(next());
        }

        long nextLong() {
            return Long.parseLong(next());
        }
    }
}