#include<stdio.h>
int main(){
    int size,k,ind,itr;
    scanf("%d %d",&size,&k);
    if(size<0 || k>size || k<size){
        printf("Invalid Input");
        return 0;
    }
    for(ind=0;ind<size;scanf("%d",&arr[ind++]));
    for(ind=k-1;ind>=0;ind--)
        printf("%d",arr[ind]);
    for(ind=3;ind<size;ind++)
        printf("%d",arr[ind]);
        
    return 0;    
}