Lucky Party

('A', 2), == Set 1, flip ('B', 1), == Set 2, same ('C', 4), == Set 3, global swap L ('A', 1), == Set 1, same ('B', 2), ==Set 2, flip ('C', 3),== Set 3, neighbor swap L ('B', 4), == Set 2, global swap L ('A', 3), == Set 1, neighbor swap L ('C', 2), == Set 3, flip ('B', 3), == Set 2, neighbor swap L ('A', 4), == Set 1, global swap L ('C', 1) == Set 3, same

• 60