Given dictionaries, d1 and d2, create a new dictionary with the following property: for each entry (a, b) in d1, if a is not a key of d2 (i. e., not a in d2) then add (a, b) to the new dictionary for each entry (a, b) in d2, if a is not a key of d1 (i. e., not a in d1) then add (a, b) to the new dictionary for example, if d1 is {2: 3, 8: 19, 6: 4, 5: 12} and d2 is {2: 5, 4: 3, 3: 9}, then the new dictionary should be {8: 19, 6: 4, 5: 12, 4: 3, 3: 9} associate the new dictionary with the variable d3