T = list(map(int, input().split()))
total = 6000
ng = False
for i in range(len(T)):
    if ng:
        print(-1)
        continue
    if T[i] == -1:
        ng = True
        print(-1)
        continue
    total -= T[i]
    if 0 <= total:
        print(total)
    else:
        print(-1)