# -*- coding: utf-8 -*-
print("請依序輸入三科成績:國文、英文、數學")
score_a = int(input("國文成績:"))
score_b = int(input("英文成績:"))
score_c = int(input("數學成績:"))
total = score_a + score_b + score_c
average = total / 3.0
print("\n三科總分:", total)
print("平均分數:", round(average, 2))
if average >= 80:
print("恭喜!平均分數達到標準,表現很優秀!")
else:
print("加油!尚未達到標準,下次一定可以更好!")