#include <iostream>

using namespace std;

typedef long long LL;

int n, cnt;
LL k;

int main() {
    scanf("%d%lld", &n, &k);
    for (int i = 1, x; i <= n; ++i) {
        scanf("%d", &x);
        if (x != i) ++cnt;
    }

    if (k == 1) puts(cnt == 2 ? "YES" : "NO");
    else if (k % 2 == 1) puts(cnt == 2 || (4 <= cnt && cnt <= k * 2) ? "YES" : "NO");
    else puts(cnt == 0 || (3 <= cnt && cnt <= k * 2) ? "YES" : "NO");

    return 0;
}