StyleInCode

""" day_05_01.py """

# usage: python3 day_05_01.py < input

import sys


with sys.stdin as infile:
    fresh = []
    while line := infile.readline().strip():
        fresh.append(list(map(int, line.split('-'))))

    fresh.sort()

    total = 0
    while line := infile.readline().strip():
        for begin, end in fresh:
            if begin <= int(line) <= end:
                total += 1
                break

print(total)

""" day_05_02.py """

# usage: python3 day_05_02.py < input

import sys


with sys.stdin as infile:
    ids = []
    while line := infile.readline().strip():
        ids.append(list(map(int, line.split('-'))))

ids.sort()

while True:
    for i, _ in enumerate(ids[:-1]):
        [x1, y1], [x2, y2] = ids[i], ids[i + 1]

        if x2 > y1:
            continue

        ids = ids[:i] + [[x1, max(y1, y2)]] + ids[i + 2:]
        break
    else:
        break

total = sum(y - x + 1 for x, y in ids)

print(total)