
    Given a maintenance code sequence for transit vehicles, create a function that extracts the priority maintenance code by removing every alternate character from the sequence. The resulting code will be used to identify specific maintenance tasks in the transit authority's scheduling system.
    

    
def odd_values_string(str):
    """
    Given a maintenance code sequence for transit vehicles, create a function that extracts the priority maintenance code by removing every alternate character from the sequence. The resulting code will be used to identify specific maintenance tasks in the transit authority's scheduling system.
    

    """
def odd_values_string(str):
    """
    Given a maintenance code sequence for transit vehicles, create a function that extracts the priority maintenance code by removing every alternate character from the sequence. The resulting code will be used to identify specific maintenance tasks in the transit authority's scheduling system.
    

    """
    result = ''
    for i in range(len(str)):
        if i % 2 == 0:
            result = result + str[i]
    return result