create a function for min and max of a number

def min_max(a, b):
  if a < b:
    return a, b
  else:
    return b, a

def max(a, b):
  if a < b:
    return b
  else:
    return a

def min(a, b):
  if a < b:
    return a
  else:
    return b
    
min(1, 2), max(1, 2)