N = int(input())
H = list(map(int, input().split()))
X = [10 **9 + 1]
xlen = 1
tmp = 0
for i in range(N):
    h = H[i]
    while X[-1] <= h:
        tmp -= X.pop() * (-1) ** (xlen)
        xlen -= 1
    if xlen % 2 == (i + 1) % 2:
        X.append(h)
        xlen += 1
        tmp += h * (-1) ** (i)
    print(tmp)