import sys for line in sys.stdin: a = line.split() print(int(a[0]) + int(a[1])) import pandas as pd df = pd.read_csv('sales.csv') df['R_Quartile'] = pd.qcut(df['recency'], 4, labels=['4', '3', '2', '1']).astype(int) df['F_Quartile'] = pd.qcut(df['frequency'], 4, labels=['1', '2', '3', '4...