题解 | #统计职能部分运动会某项目的报名信息#

import sys

import pandas as pd 
items = pd.read_csv('items.csv')
signup = pd.read_csv('signup.csv')
df = items.merge(signup, how = 'left', on = 'item_id')
df = df.query("department == 'functional' & item_name == 'javelin'").reset_index(drop = True)
print(df[['employee_id', 'name', 'sex']])

for line in sys.stdin:
    a = line.split()
    print(int(a[0]) + int(a[1]))