def generate_positionnal_changes_indicator(string1, string2):
    """ Generate a string showing the differences between two strings
    """
    changes = ""
    if len(string1) < len(string2):
        string_iteration = string1
        string_to_compare = string2
    else:
        string_iteration = string2
        string_to_compare = string1
    for i in range(len(string_iteration)):
        if string_iteration[i] == string_to_compare[i]:
            changes += " "
        else:
            changes += "^"
    return changes