a, b, c = map(int, input().split())

ans = []

for i in range(20001):
    if i * a > b:
        if i * a - b == c:
            ans.append(i)
    else:
        if i * a == c:
            ans.append(i)

ans.sort()
if not ans:
    print(-1)
else:
    for e in ans:
        print(e)