ascii.pint

def format(number):
  if number < 0:
    print('-')
    number *= -1
  printDigits(number)

def printDigits(number):
  quotient, remainder = divide(number, 10)
  if quotient > 0:
    printDigits(quotient)
  remainder += '0'
  print(remainder)

def divide(dividend, divisor):
  if dividend < divisor:
    return 0, dividend
  doubledivisor = divisor * 2
  halfquotient, remainder = divide(dividend, doubledivisor)
  quotient = halfquotient * 2
  if remainder >= divisor:
    divisor *= -1
    remainder += divisor
    quotient += 1
  return quotient, remainder

def parseInt():
  result = 0
  sign = 1
  digit = input()
  if digit == '-':
    sign = -1
    digit = input()
  while 1 == 1:
    if digit < '0':
      result *= sign
      return result
    if digit > '9':
      result *= sign
      return result
    digit -= '0'
    result *= 10
    result += digit
    digit = input()

print('Type in a simple calculation using two operants\n')
print('and one of +, -, * or / with spaces between,\n')
print('e.g. '132 / 17'\n')

left = parseInt()
op = input()
space = input()
right = parseInt()
found = 0
if op == '+':
  result = left + right
  found = 1
if op == '-':
  right *= -1
  result = left + right
  right *= -1
  found = 1
if op == '*':
  result = left * right
  found = 1
if op == '/':
  result = divide(left,right)
  found = 1
if found == 1:
  format(left)
  print(' ')
  print(op)
  print(' ')
  format(right)
  print(' = ')
  format(result)
if found == 0:
  print('Unknown operator: ')
  print(op)
print('\n')