#include<stdio.h>
#include<stdlib.h>
#include<string.h>

int count=0;

void swap(int x[ ], int i, int j)
{
    int temp;

    temp = x[i];
    x[i] = x[j];
    x[j] = temp;
}




int main(){
	int i=0,N,K,ary[200000],cp[200000],ans,flag=0;
	scanf("%d",&N);
	scanf("%d",&K);
	
	for(i=0;i<N;i++){
		scanf("%d",&ary[i]);
	}
	i=0;
	while(i<N){		
		if(ary[i]!=i+1){
			swap(ary,i,ary[i]-1);
			count++;
		}else i++;
		 
	}
	if(count<=K){
		if((K-count)%2==0) flag=1;
		else if((K-count)%2==1) flag=0;
	}else{
		flag =2;
	}
	

	if(flag==0) printf("NO\n");
	else if(flag==1) printf("YES\n");
	else if(flag==2) printf("NO\n");
	return 0;
}