in the given string, reverse only the alphabets while keeping the integers in its original position

reverse_alphabets.py

def reverse_alphabets(string):
    # Separate alphabets and digits
    alphabets = []
    digits = []
    for char in string:
        if char.isalpha():
            alphabets.append(char)
        else:
            digits.append(char)
    
    # Reverse the alphabets
    reversed_alphabets = alphabets[::-1]
    
    # Reconstruct the string
    output = ""
    for char in string:
        if char.isalpha():
            output += reversed_alphabets.pop(0)
        else:
            output += char
    
    return output

# Example usage
input_string = 'a1b2c3d4312'
output_string = reverse_alphabets(input_string)
print(output_string)