import sys
import pandas as pd
for line in sys.stdin:
    a = line.split()
    print(int(a[0]) + int(a[1]))
df=pd.read_csv('nowcoder.csv')
df["date"]=pd.to_datetime(df["date"])

res=df.groupby([df["result"],df["date"].dt.date]).size()
res.index.names=['result','year-month-day']
print(res)