
    Create a function that simplifies route identifiers in a delivery fleet's navigation system by removing every second character from street codes, making them more readable for drivers during peak traffic hours while preserving essential route recognition patterns. The function should take a route identifier string as input and return a modified version with characters at odd indices removed, helping drivers quickly scan and identify their assigned routes.
    

    
def odd_values_string(str):
    """
    Create a function that simplifies route identifiers in a delivery fleet's navigation system by removing every second character from street codes, making them more readable for drivers during peak traffic hours while preserving essential route recognition patterns. The function should take a route identifier string as input and return a modified version with characters at odd indices removed, helping drivers quickly scan and identify their assigned routes.
    

    """
def odd_values_string(str):
    """
    Create a function that simplifies route identifiers in a delivery fleet's navigation system by removing every second character from street codes, making them more readable for drivers during peak traffic hours while preserving essential route recognition patterns. The function should take a route identifier string as input and return a modified version with characters at odd indices removed, helping drivers quickly scan and identify their assigned routes.
    

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