n = int(input())
stars = []

for _ in range(n):
    star_list = [int(i) for i in input().split()]
    stars.append({'start': star_list[0], 'end': star_list[1], 'desirability': star_list[2]})

# list of lists of stars
all_overlapping = []

for star in stars:
    star_overlapping = []
    for other_star_index in range(len(stars)):
        other_star = stars[other_star_index]
        if star == other_star:
            continue
        if (star['start'] >= other_star['start'] and star['start'] <= other_star['end'] or
        star['end'] >= other_star['start'] and star['end'] <= other_star['end']):
            star_overlapping.append(other_star_index)
    all_overlapping.append(star_overlapping)


def get_max_desirability(args):
    max_arg_desirability = -1
    max_arg_index = 0
    for index in args:
        if

max_desirabilities = []
for i in range(len(all_overlapping)):
    max_desirabilities.append(get_max_desirability(all_overlapping[i]))