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

X = []
X1 = C + B
if X1 % A == 0:
  X.append(X1 // A)

X1 = C
if X1 % A == 0:
  if X1 * A < B:
    X.append(X1 // A)
else:
  X1 = 0

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