#include <cstdio>
#include <deque>

using namespace std;

deque <int> d;
int n, k, a[5000002], sum, i;
int main()
{
    freopen("deque.in", "r", stdin);
    freopen("deque.out", "w", stdout);
    scanf("%d%d", &n, &k);
    for(i=1; i<=n; i++) scanf("%d", &a[i]);

    for(i=1; i<=n; i++){
        while(!d.empty() and a[i]<=a[d.back()])
            d.pop_back();
        d.push_back(i);
        while(d.front()<=i-k) d.pop_front();
        if(i>=k){
            printf("%d\n", a[d.front()]);
            sum+=a[d.front()]; }
    }
    printf("%d", sum);
    return 0;
}