INF = 1 << 60
N = int(input())
H = list(map(int, input().split()))

st = [(INF, 0, 0)]
for i, h in enumerate(H):
    v = 1 if i % 2 == 0 else -1  # 0=緑色 1=水色

    while st[-1][0] <= h:
        st.pop()

    ph, pv, pt = st[-1]
    if pv == v:
        print(pt)
        continue

    t = pt + h * v
    print(t)
    st.append((h, v, t))
    #
    # w = st[-1][2]
    # if st[-1][1] == 0:
    #     w += h * v
    # elif st[-1][1] == 1:
    #     if v == 0:
    #         w -= h
    #
    # print(w)
    # st.append((h, v, w))