import java.io.BufferedReader; import java.io.FileNotFoundException; import java.io.IOException; import java.io.InputStreamReader; import java.util.ArrayList; import java.util.BitSet; import java.util.Comparator; import java.util.List; import java.util.TreeSet; public class Main { public static int w; public static int k; public static int n; // public static int[][] dp; public static int[] a; public static int[] b; public static List list = new ArrayList(); public static TreeSet set = new TreeSet(); // public static PriorityQueue pq = new PriorityQueue(); public static void main(String[] args) throws NumberFormatException, IOException{ ContestScanner in = new ContestScanner(); long n = in.nextLong(); int[] p = new int[10000]; int i=1; int count = 2; p[0] = 2; while(i<10000){ count++; boolean notp = false; for(int j=0; j 1){ System.out.println("YES"); return; } } // while(i<10000){ // if(p[i] == count) i++; // else{ // if(n%count == 0){ // System.out.println("YES"); // return; // } // } // count++; // if(count == n) break; // } System.out.println("NO"); } } class Node{ int id; List edge = new ArrayList(); public Node(int id){ this.id = id; } public void createEdge(Node node){ edge.add(node); } } class MyMath{ public static long fact(long n){ long res = 1; while(n > 0){ res *= n--; } return res; } public static long[][] pascalT(int n){ long[][] tri = new long[n][]; for(int i=0; i{ public int compare(Integer arg0, Integer arg1) { return arg0 - arg1; } } // //class MyCompB implements Comparator{ // public int compare(int[] arg0, int[] arg1) { // return arg0[1] - arg1[1]; // } //} class ContestScanner{ private BufferedReader reader; private String[] line; private int idx; public ContestScanner() throws FileNotFoundException{ reader = new BufferedReader(new InputStreamReader(System.in)); } public String nextToken() throws IOException{ if(line == null || line.length <= idx){ line = reader.readLine().trim().split(" "); idx = 0; } return line[idx++]; } public long nextLong() throws IOException, NumberFormatException{ return Long.parseLong(nextToken()); } public int nextInt() throws NumberFormatException, IOException{ return (int)nextLong(); } public double nextDouble() throws NumberFormatException, IOException{ return Double.parseDouble(nextToken()); } }