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#!/bin/env python
# L = open("input").readlines()
L = [
[int(i) for i in l.strip().split(" ")] for l in open("input").readlines()
]
# L = [int(l.strip()) for l in open("input").readlines()]
def part1():
res = 0
left = [l[0] for l in L]
right = [l[1] for l in L]
while left:
left_min = min(range(len(left)), key=left.__getitem__)
right_min = min(range(len(right)), key=right.__getitem__)
res += abs(left[left_min] - right[right_min])
del left[left_min]
del right[right_min]
print(res)
def part2():
res = 0
left = [l[0] for l in L]
right = [l[1] for l in L]
for i, l in enumerate(left):
res += l * right.count(l)
print(res)
part1()
part2()
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