Android totally access

def calc(a, b, op):
  if op == '+':
    print(a + b)
  elif op == '-':
    print(a - b)
  elif op == '*':
    print(a * b)
  else:
    print('Unknown operator!')

calc(1, 2, '+')
calc(1, 2, '-')
calc(1, 2, '*')
calc(1, 2, '/')