def isEven(s):
    r_s = list(reversed(s))
    if(int(r_s[0]) % 2 == 0):
        return True
    else:
        return False


def sum_num(i_start, i_end):
    sum = 0
    for i in range(i_start, i_end+1):
        sum += int(s[i])
    return sum


input_l = input().split()

n = int(input_l[0])
m = int(input_l[1])

s = input().split()

sum_start = -1
sum_end = -1
for i in range(n+1):
    if(i == n or isEven(s[i])):
        if(sum_start < 0 or sum_end < 0):
            pass
        elif(sum_end - sum_start + 1 >= m):
            print(sum_num(sum_start, sum_end))
        sum_start = -1
        sum_end = -1
    else:
        if(sum_start < 0):
            sum_start = i
            sum_end = i
        else:
            sum_end = i