# add2.py
# Here is a simple program that will add 2 numbers.
# Note that lines that begin with a '#' are comments and
# are ignored by the interpreter.  Comments help the
# human reader understand what the program is about.

# ----------------------------------------------------
# input

first = input("Please enter first number")
second = input("Please enter second number")

# ----------------------------------------------------
# calculations

sum = first + second

# ----------------------------------------------------
# output

print "Here's the sum of your numbers:  "
print sum