1 #!/usr/bin/env python 2 3 import operator 4 5 a = 1 6 b = 2 7 c = operator.add(a, b) 8 d = operator.add(operator.add(a, b), c) 9 10 result_3 = c 11 result_6 = d 12 13 # vim: tabstop=4 expandtab shiftwidth=4