In this task, you are given a country name, and you need to return the year in which the country became independent. Independence is a nation's independence or statehood, usually after ceasing to be a group or part of another nation or state, or more rarely after the end of military occupation.

Example Input: Samoa
Example Output: 1962

Example Input: Papua New Guinea
Example Output: 1975

Example Input: Congo, The Democratic Republic of the
Example Output:
1960