#!/usr/bin/env python
#
# Add two integers
# Author:  Yotam Medini  yotam.medini@gmail.com -- Created: 2010/May/27


import sys


# Return (x+y) with the restriction that we can add or subtract only 1.
def add(x, y):

    if y >= 0:
        while y != 0:
            x += 1
            y -= 1
    else:
        while y != 0:
            x -= 1
            y += 1

    return x


# Begin of program
if len(sys.argv) != 3:
    sys.stderr.write("Usage: %s <n1> <n2>\n" % sys.argv[0])
    sys.exit(1)

# Get integer numbers from command line
n1 = int(sys.argv[1])
n2 = int(sys.argv[2])
# Add and show
sys.stdout.write("%d + %d = %d\n" % (n1, n2, add(n1, n2)))
sys.exit(0) # Happy End