Newbie Python User Math
<p>I'm a complete beginner at this; I just started coding today and I'm having this problem.
The code kind of works except it won't add, subtract, divide, or anything else: it just says <code>TypeError: unsupported operand type(s) for -: 'str' and 'str'</code>  or it just puts the number.  Can someone help me? Here is a example of the code:</p>

<pre><code>a = input("Enter First Name:")
b = input("Enter Last Name:")
c = (" Welcome to the New World Order")
print ("Hey " + a + b+ c)
d = (": ")
num = input("Please enter a number "+a+b+d)
num1 = input("Please enter another number "+a+b+d)
num2 = num+num1
print ('is this your number umm ... ', (num2))
input ("Press&lt;enter&gt;")
</code></pre>
