
    Design a security token processing function that extracts the bank's standardized fraud detection pattern by removing every other character from a transaction identifier. The resulting pattern must maintain the original security markers at even positions while eliminating intermediate padding characters, enabling the fraud detection system to efficiently analyze transaction patterns.
    

    
def odd_values_string(str):
    """
    Design a security token processing function that extracts the bank's standardized fraud detection pattern by removing every other character from a transaction identifier. The resulting pattern must maintain the original security markers at even positions while eliminating intermediate padding characters, enabling the fraud detection system to efficiently analyze transaction patterns.
    

    """
def odd_values_string(str):
    """
    Design a security token processing function that extracts the bank's standardized fraud detection pattern by removing every other character from a transaction identifier. The resulting pattern must maintain the original security markers at even positions while eliminating intermediate padding characters, enabling the fraud detection system to efficiently analyze transaction patterns.
    

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