#include<stdio.h>
int main(){
    int N,K;
    scanf("%d %d, &N,&K");
    if(N<0 || k < 0 || K>N){
        printf("Invalid Input");
        return 0;
    }
    int arr[N];
    for(int i = 0 ; i<N;i++){
        scanf("%d",&arr[i]);
        
    }

    for(int i = 0; i< K/2;i++){
        int temp = arr[i];
        arr[i] = arr [K-1-i];
        arr[k-1-i]=temp;
    }
    for (int i = 0;i<N;i++){
        printf("%d",arr[i]);
        
    }
    return 0;
}