ДЗ. Задание 5

from collections import defaultdict


file = open("input.txt", "r", encoding="utf-8")
max_scores = defaultdict(int)

for line in file:
    class_number, score = map(int, line.split()[2:])
    max_scores[class_number] = max(max_scores[class_number], score)

file.close()
print(max_scores[9], max_scores[10], max_scores[11])