A, B, C = map(int, input().strip().split(' '))

X = []

for N in range(2000001):
  R = N * A
  R = [R, R - B][R - B > 0]
  if R == C:
    X.append(N)

if len(X) == 0:
  print(-1)
else:
  for i in X:
    print(i)