n, m = map(int, input().split())
a = list(map(int, input().split()))
a.append(10**9+2)
sm=0
sc=0
for i in range(n+1):
    if a[i]%2==0:
        if sc>=m:
            print(sm)
        sm=0
        sc=0
    else:
        sc+=1
        sm+=a[i]