#include <iostream>
#include <vector>
#include <algorithm>
#include <cmath>
#include <cstdio>
#include <string>
#include <map>
using namespace std;
#define rep(i,n) for(int i=0;i<n;i++)
#define INF 100000007

int main() {
	int n,cnt=0;
	long long int k;
	cin >> n >> k;
	vector<int>d(n);
	rep(i, n)
		cin >> d[i];
	while (true) {
		bool flag = true;
		rep(i, n) {
			if (d[i] != i + 1)
			{
				swap(d[i], d[d[i] - 1]);
				cnt++;
				flag = false;
			}
		}
		if (flag)
			break;
	}
	string s = (k - cnt) % 2 ||(k-cnt)<0? "NO" : "YES";
	cout << s << endl;
}