#include <stdio.h>
void sliding_window_sum(int arr[], int n, int k) {
int start = 0;
int end = k - 1;
while (end != (n)){
int val = 0;
for (int i = start; i <= end; i++){
val+= arr[i];
}
printf("%d ",val);
start++;
end++;
}
// Your logic here
}
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;
}