# raw_input and map function behaviour
if sys.version[0] == "2":
lmap = lambda f, a: map(f, a)
- unc = lambda x: x.decode('utf-8')
+ str2u = lambda x: x.decode('utf-8')
+ u2str = lambda x: x.encode('utf-8')
else:
+ xrange = range
raw_input = input
lmap = lambda f, a: list(map(f, a))
- unc = lambda x: x
+ str2u = u2str = lambda x: x