[Link] https://AtCoder.jp/contests/abc238/tasks/abc238_a
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import java.util.*;
import java.io.*;
public class Main {
static BufferedReader br;
static StringBuilder sb = new StringBuilder();
static int div = 1000000003;
public static void main(String[] args) throws IOException {
br = new BufferedReader(new InputStreamReader(System.in));
int n = toi(br.readLine());
if(n > 4 || n == 1) println("Yes");
else println("No");
}
static int toi(String s) { return Integer.parseInt(s); }
static String[] getLine() throws IOException { return br.readLine().split(" "); }
static int[] getArr() throws IOException { return Arrays.stream(br.readLine().split(" ")).mapToInt(Integer::parseInt).toArray(); }
static <T> void print(T s) { System.out.print(s); }
static <T> void println(T s) { System.out.println(s); }
}