# Task 9: Replace the space character Write a Python program to replace the space character that occurs after a word ending with a or r with a newline character. Sample data : 'area not a a2\_b roar took 22' Sample output : area not a a2\_b roar took 22

Here's the Python code to achieve the desired output:

data = 'area not a a2_b roar took 22'
output = ''
i = 0
while i < len(data):
    if data[i] == ' ' and (i > 0 and (data[i-1] == 'a' or data[i-1] == 'r')):
        output += '\n'
    else:
        output += data[i]
    i += 1

print(output)

Output:

area   not a   a2_b roar   took 22