N = int(input())
H = list(map(int, input().split()))

stk = [(10 ** 18, 1)]
ans = 0

def query(h, cl):
    global ans
    while stk:
        pre_h, pre_cl = stk[-1]
        if h < pre_h:
            if pre_cl != cl:
                stk.append((h, cl))
                ans -= h * cl
            break
        else:
            stk.pop()
            ans += pre_h * pre_cl
    print(ans)

for i, h in enumerate(H):
    cl = 1 if i % 2 else -1
    query(h, cl)