# 想定誤答：不等号ミス
LIMIT = 6000

T = [int(s) for s in input().split()]
T = [LIMIT + 1 if t == -1 else t for t in T]
sum_val = 0

for t in T:
    sum_val += t
    ans = LIMIT - sum_val
    print(ans if ans > 0 else -1)