# Write a Pandas program to find the index of a substring of DataFrame with beginning and end position.  
import pandas as pd
df = pd.DataFrame({
    'name_code': ['c0001','1000c','b00c2', 'b2c02', 'c2222'],
    'date_of_birth ': ['12/05/2002','16/02/1999','25/09/1998','12/02/2022','15/09/1997'],
    'age': [18.5, 21.2, 22.5, 22, 23]
})
print("Original DataFrame:")
print(df)
print("\nIndex of a substring in a specified column of a dataframe:")
df['Index'] = list(map(lambda x: x.find('c', 0, 5), df['name_code']))
print(df)
