Rnd = RandomRange(5);

Vector3 ShiftPos =  New Vector3 (Random.Range(-5f,5f),Random.Range(-5f,5f),Random.Range(-5f,5f));
transform.position = MyPos + ShiftPos;

transform.position = MyPos;

Random.Range(-5f,5f)*K

using UnityEngine;
using System.Collections;

public class Cube : MonoBehaviour {
public Transform Player;
public int a = 0;
public int rot = 0;
// Use this for initialization
void Start () {
   
}
   
// Update is called once per frame
void Update () {
if(Input.GetKey(KeyCode.F)){   
a = Random.Range(1,2);     
}
if(a == 1){   
Player.localRotation = Quaternion.AngleAxis (rot, Vector3.right);
}else{
if(a == 2){    
Player.localRotation = Quaternion.AngleAxis (rot, Vector3.left);   
}
}   
}
}