A, B, C = map(int, input().split())
possible_N = []

for N in range(1, B+C):
    num = N
    num *= A  # 兄が整数をA倍する
    num -= B  # 弟が整数からBを引く
    if num <= 0:
        continue
    if num == C:
        possible_N.append(N)

if len(possible_N) > 0:
    for N in possible_N:
        print(N)
else:
    print(-1)