Dictionary Values to be unique and get the latest key-value pair of the unique value [closed]

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For example, I have a dictionary with

Input:

{"A":1, "B":1, "C":1, "D":2, "E":2, "F":3}

Output:

{"C":1, "E":2, "F":3}

I tried getting unique values and retrieving back their keys but they are not in order.



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