def search(_list, target, initial_position=0):
    """sequential search algorithm
    
    This function returns the position 
    of the target if found else returns -1
    
    :param _list: 
    :param target:
    :param initial_position: default @ 0
    :return: 
    """
    position = initial_position
    while position < len(_list):
        if target == _list[position]:
            return position
        position += 1
    return -1