#include<stdio.h>
int main()
{
    int n,ind,k,itr,temp;
    scanf("%d%d",&n,&k);
    if(n<0||k<||k>n)
    {
        printf("Invalid Input");
        return 0;
    }
    int arr[size];
    for(ind=0;ind<n;scanf("%d",&arr[ind++]));
    for(ind=k-1;ind>=0;ind--)
    printf("%d",arr[ind]);
    for(ind=k;ind<n;ind++);
    printf("%d",arr[ind]);
    return 0;
}