title: python calculator program
body: <p>I wrote a simple calculator program by using functions, I don't know what exactly wrong with this code, its showing error. I did possible steps to debug this, but I couldn't. </p>
  
  <pre><code>#!/usr/bin/python
  
  def add():        
          print "Enter the two numbers to Add"
          A=int(raw_input("Enter A:"))
          B=int(raw_input("ENter B:"))
          c = A + B 
  
  def sub():            
          print "Enter the two numbers to Subtract"
          A=int(raw_input("Enter A:"))
          B=int(raw_input("Enter B:"))
          c = A - B
  
  def Mul():
          print "Enter the two numbers to Multiply"
          A=int(raw_input("Enter A:"))
          B=int(raw_input("Enter B:"))
          c = A * B
  
  def Div():   
          print "Enter the two number to Divide"
          A=float(raw_input("Enter A:"))
          B=float(raw_input("Enter B:"))
          c = A / B
  
  print "1: ADDITION"
  print "2: SUBTRACTION"
  print "3: MULTIPLICATION"
  print "4: DIVITION"
  print "0: QUIT"
  
  while true:
  
      CHOICE = int(raw_input(("ENTER THE CORRESPONDING NUMBER FOR CALCULATION")) 
  
      if CHOICE == "1": 
          print 'ADDING TWO NUMBERS:'
          add(c):
  
      elif CHOICE == "2":
          print 'SUBTRACTING TWO NUMBERS:'
          sub(c):
  
      elif CHOICE == "3":
          print 'MULTIPLYING TWO NUMBERS:'
          Mul(c):
  
      elif CHOICE == "4":
          print "DIVIDEING TWO NUMBERS"
          Div(c):
  
      elif CHOICE == "0":
          return 0:
  
      else
          Print "The value Enter value from 1-4"
  </code></pre>
  
  <p>Error:</p>
  
  <pre><code>  File "cal_fun.py", line 44
      if CHOICE == "1": 
                    ^
  SyntaxError: invalid syntax
  </code></pre>