import random
+
class grab_bag(object):
def __init__(self):
self.contents = set()
def size(self):
return len(self.contents)
-#x = grab_bag()
-#x.add_all([1, 2, 3, 4, 5, 6, 7, 8, 9, 10])
-#print x.subset(3)
+
+# x = grab_bag()
+# x.add_all([1, 2, 3, 4, 5, 6, 7, 8, 9, 10])
+# print x.subset(3)