import operator
d={1:2,3:4,4:3,2:1,0:0}
print('Original dictionary is ',d)
sorted_d=dict(sorted(d.items(),key=operator.itemgetter(1)))
print('Dictionary in ascending order ',sorted_d)
sorted_d=dict(sorted(d.items(),key=operator.itemgetter(1),reverse=True))
print('Dictionary in descending order ',sorted_d)
