n,m=map(int,input().split())
a=[int(i) for i in input().split()]
b=[]
for i in a:
    if i%2==0:
        if b!=[] and len(b)>=m:
            print(sum(b))
        b=[]
    else:
        b+=[i]
        if i==a[-1] and len(b)>=m:
            print(sum(b))
        elif i==a[-1] and len(b)<m:
            exit()