Untitled

def solve(n,secret,guess):
  bulls = [False for _ in range(n)]
  cows = [False for _ in range(n)]
  
  x = 0
  y = 0
  for i in range(n):
    if guess[i] == secret[i]:
      bulls[i] = True
      x += 1
  for i in range(n):
    if bulls[i]:
      continue
    
    for j in range(n):
      if bulls[j] or cows[j]:
        continue
      if secret[j] == guess[i]:
        y += 1
        cows[j] = True
        break
  print(f"{x}A{y}B")