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