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