from collections import Counter from fileinput import input L, R = zip(*[[int(n) for n in s.split()] for s in input()]) silver = sum(abs(left - right) for left, right in zip(sorted(L), sorted(R))) L, R = Counter(L), Counter(R) gold = sum(n * L[n] * R[n] for n in list(L & R)) print("silver:", silver) print("gold:", gold)