# Write a Pandas program to stack two given series vertically and horizontally.  
 import pandas as pd
series1 = pd.Series(range(10))
series2 = pd.Series(list('pqrstuvwxy'))
print("Original Series:")
print(series1)
print(series2)
series1.append(series2)
df = pd.concat([series1, series2], axis=1)
print("\nStack two given series vertically and horizontally:")
print(df)
