<human>:  Can you show me a Python function to 3 user input if else.
<bot>: Here is a Python function to 3 user input if else, it would be a Python Function

import math

def _if_else(a, b, c):
  """
  A function for 3 user input if else

  :type a: number
  :param a: The first number to check

  :type b: number
  :param b: The second number to check

  :type c: number
  :param c: The third number to check
  """

  if a > b and a > c:
    return a
  elif b > a and b > c:
    return b
  elif c > a and c > b:
    return c
  else:
    return 0

# Enter the numbers
a = 12
b = 15
c = 18

# Calling the function
print((_if_else(a, b, c)))

#Example Output
# 18

#Remember to inspect code for bugs.