
    Design a text standardization function for an adaptive learning system that removes every other character from a student's submitted answer to maintain consistent formatting for automated assessment. The function should process raw student input text and return a cleaned version containing only characters at even positions (0-based indexing) from the original submission.
    

    
def remove_odd(str1):
    """
    Design a text standardization function for an adaptive learning system that removes every other character from a student's submitted answer to maintain consistent formatting for automated assessment. The function should process raw student input text and return a cleaned version containing only characters at even positions (0-based indexing) from the original submission.
    

    """
def remove_odd(str1):
    """
    Design a text standardization function for an adaptive learning system that removes every other character from a student's submitted answer to maintain consistent formatting for automated assessment. The function should process raw student input text and return a cleaned version containing only characters at even positions (0-based indexing) from the original submission.
    

    """
    str2 = ''
    for i in range(1, len(str1) + 1):
        if i % 2 == 0:
            str2 = str2 + str1[i - 1]
    return str2