import sys
import pandas as pd

pd.set_option('display.width', 300) # 设置字符显示宽度
pd.set_option('display.max_rows', None) # 设置显示最大行
pd.set_option('display.max_columns', None)

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

df=pd.read_csv('Nowcoder.csv')
print(df[(df["Graduate_year"]==2020) & (df["Language"]=='Java')])