Pickup items and add them in two seperated list

Hello , this is Mahsa
I wanna pickup some objects , for example some (logs) , and I want them to be like this →
I have two list : list number 1 and list number two, when I pickup the log number 1 I want to go to the list number 1, then when I pickup log number 2 I want to go in list number 2, and collecting logs happening in a IEnumerator.

private IEnumerator MoveLogToLogStack(ResourcesData log)
{
    WaitForEndOfFrame wait = new WaitForEndOfFrame();

    float timer = 0;
    float duration = 0.3f;

    var lastTileLocalPos = Vector3.zero;


    if(inputLogList_1.Count > 0)
    {
        lastTileLocalPos = inputLogList_1.Last().stackLocalPosition;
    }

    log.stackLocalPosition = lastTileLocalPos + Vector3.up * log.logHeight;

    log.transform.parent = logStackPoint_1;

    var startPos = log.transform.localPosition;

    log.CanCollect = false;

    inputLogList_1.Add(log);

    while(timer < duration)
    {
        timer = Mathf.Min(timer + Time.deltaTime, duration);

        float t = timer / duration;

        var targetPos = lastTileLocalPos;

        var position = Vector3.Lerp(startPos, targetPos, t);

        position.y += animationCurve.Evaluate(t);

        log.transform.localPosition = position;

        yield return wait;

    }

}

This just goes in the first list