using System;
using System.Collections;
using System.Collections.Generic;
using System.Linq;
using System.Text;

class TEST{
	static void Main(){
		Sol mySol =new Sol();
		mySol.Solve();
	}
}

class Sol{
	public void Solve(){
		
		long t = 0;
		for(int i=0;i<N;i++) D[i]--;
		int[] To = new int[N];
		for(int i=0;i<N;i++) To[D[i]] = i;
		
		for(int i=0;i<N;i++){
			if(D[i] == i) continue;
			t++;
			var tmp = D[i];
			var t1 = To[i];
			D[To[i]] = tmp;
			To[tmp] = t1;
			D[i] = i;
		}
		
		//Console.WriteLine(t);
		
		if(t > K){
			Console.WriteLine("NO");
			return;
		}
		
		Console.WriteLine( (t-K)%2 == 0 ? "YES" : "NO");
		
	}
	int N;
	long K;
	int[] D;
	public Sol(){
		var d = rla();
		N = (int) d[0];
		K = d[1];
		D = ria();
	}

	static String rs(){return Console.ReadLine();}
	static int ri(){return int.Parse(Console.ReadLine());}
	static long rl(){return long.Parse(Console.ReadLine());}
	static double rd(){return double.Parse(Console.ReadLine());}
	static String[] rsa(char sep=' '){return Console.ReadLine().Split(sep);}
	static int[] ria(char sep=' '){return Array.ConvertAll(Console.ReadLine().Split(sep),e=>int.Parse(e));}
	static long[] rla(char sep=' '){return Array.ConvertAll(Console.ReadLine().Split(sep),e=>long.Parse(e));}
	static double[] rda(char sep=' '){return Array.ConvertAll(Console.ReadLine().Split(sep),e=>double.Parse(e));}
}