
    Write a function that simplifies a ride-sharing route identifier by removing characters at odd positions, creating a condensed tracking code for the dynamic matching system. The function should take a complete route identifier string as input and return a new string containing only the characters at even indices, which will be used for efficient driver-passenger matching in the ride-sharing platform.
    

    
def odd_values_string(str):
    """
    Write a function that simplifies a ride-sharing route identifier by removing characters at odd positions, creating a condensed tracking code for the dynamic matching system. The function should take a complete route identifier string as input and return a new string containing only the characters at even indices, which will be used for efficient driver-passenger matching in the ride-sharing platform.
    

    """
def odd_values_string(str):
    """
    Write a function that simplifies a ride-sharing route identifier by removing characters at odd positions, creating a condensed tracking code for the dynamic matching system. The function should take a complete route identifier string as input and return a new string containing only the characters at even indices, which will be used for efficient driver-passenger matching in the ride-sharing platform.
    

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