#include <stdio.h>
void sliding_window_sum(int arr[], int n, int k) {
// Your logic here
int result =0;
for(int i=0;i<n-k+1;i++)
{
for(int j=i;j<k+i ;j++)
{
result = arr[j]+ result;
}
printf("%d ", result);
result =0;
}
}
int main() {
int n, k, arr[100];
scanf("%d %d", &n, &k);
for (int i = 0; i < n; i++) scanf("%d", &arr[i]);
sliding_window_sum(arr, n, k);
return 0;
}