15 Closest Country Tripoint Pairs with no common country
Can you find the 15 country tripoints that are closest to each other, given that the two tripoints consist of six different countries?
Countries A, B and C are sorted alphabetically
Country A of Tripoint 1 comes before Country A of Tripoint 2 in alphabetical order (etc)
At the end of country C you may read for example "(N)" which means that of the two tripoints those three countries have you have to consider the northern one