from hashlib import sha256

def mineBurro(block):
  nounce = 0
  h = sha256(block.getContent() + str(nounce).encode()).hexdigest()
  block.setHash(h)
  block.setNounce(nounce)

  return block

def mineMenosBurro(block):
  nounce = 0

  while True:
    nounce += 1
    h = sha256(block.getContent() + str(nounce).encode()).hexdigest()

    if h[0] == "0" : # hash com 1 zero
      block.setHash(h)
      block.setNounce(nounce)

      return block