def find_grade(total):
  # write an appropriate and helpful docstring
  """
  convert total score into grades
  :param total: 0-100 
  :return: str
  """
  grade = 0 # initial placeholder
  # use conditional statement to set the correct grade
  grade = 'A' if total>=93 else 'A-' if total >= 90 else 'B+' if total >= 87 else 'B' if total >= 83 else 'B-' if total >=80 else 'C+' if total >= 77 else 'C' if total >= 73 else 'C-' if total >=70 else 'D' if total >=60 else 'F' 
  return grade