How to get the list of replacement strings from a regex?

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import re

# Define the regular expression pattern
pattern = r'd+'

# Define the input string
input_string = 'I have 10 apples and 20 oranges'

# Find all matches of the pattern in the input string
matches = re.findall(pattern, input_string)

# Define a list of replacement strings
replacement_strings = ['one', 'two', 'three', 'four', 'five', 'six', 'seven', 'eight', 'nine', 'ten']

# Replace each match with a corresponding replacement string
replaced_string = re.sub(pattern, lambda m: replacement_strings[int(m.group(0))-1], input_string)

print(matches)  # Output: ['10', '20']
print(replaced_string)  # Output: 'I have ten apples and twenty oranges'