p, q, a = map(int, input().split())

ans = 0
for i in range(100):
  diff = (p * i) // 100 - (q * i) // 100 - a
  lb = 1 - (i + 99) // 100
  ub = 10 ** 7 - (i + 99) // 100
  if p == q:
    if diff < 0:
      ans += ub - lb + 1
  else:
    if q > p:
      if diff % (q - p) == 0:
        lb = max(lb, diff // (q - p) + 1)
      else:
        lb = max(lb, (diff + q - p + 1) // (q - p))
    else:
      if diff % (p - q) == 0:
        ub = min(ub, (- diff) // (p - q) - 1)
      else:
        ub = min(ub, (- diff) // (p - q))
    ans += max(0, ub - lb + 1)

print(ans)