input: Write a function to find all divisors of a given number and print them. If the input number is negative or zero, print an appropriate message. The function should return None.
  assert find_divisors(12)==None, "Since we print the result inside the function, no value is returned"
  assert find_divisors(0)==None, "Since we print the result inside the function, no value is returned"
  assert find_divisors(-5)==None, "Since we print the result inside the function, no value is returned"
  assert find_divisors(7)==None, "Since we print the result inside the function, no value is returned"
  assert find_divisors(25)==None, "Since we print the result inside the function, no value is returned"
output: def find_divisors(n):
      if n <= 0:
          print("Input number should be positive and non-zero")
          return None
      divisors = [i for i in range(1, n + 1) if n % i == 0]
      print(divisors)
      return None