Switch-Case Statements and stateInfo.fullPathHash

Hi, I'm trying to use the switch statement combine with stateInfo.fullPathHash to define the cases

but for each case the console give this "error CS0150: A constant value is expected"

  using UnityEngine;
  using System.Collections;
  
  public class V_anim : MonoBehaviour {
  
  private Animator anim;
  private AnimatorStateInfo currentBaseState;
  
  static int Idle_SState = Animator.StringToHash ("Base Layer.Idle_Start");
  static int Idle_LState = Animator.StringToHash ("Base Layer.Idle_Loop");
  
  void Start () 
      {
          anim = GetComponent<Animator> ();
          if (anim.layerCount == 2)
          anim.SetLayerWeight (1,1);
  
      }
  
  void FixedUpdate ()
      {
      AnimDebugger();
      }
  
  void AnimDebugger()
      {
      AnimatorStateInfo stateInfo = anim.GetCurrentAnimatorStateInfo (0);
      
      switch (stateInfo.fullPathHash) 
          {
              case Idle_SState:
                  Debug.Log ("Idle_SState Running");
                  break;
              
              case Idle_LState:
                  Debug.Log("Idle_SState Running");
                  break;
              
              default:
                  Debug.Log("stateInfo.fullPathHash Variable Out of Range");
                  break;
          }
      }
 }

Just to clarify:

My final goal is not to use the Debug, I just use it to test my logic before using in a proper way,

Since I'm learning program yet, I didnt use any design patterns in the code, so sorry if its became confuse in anyway.

The error says that the value should be a constant but the "case" variable is declared as "Static Int" so I dont really understand why I cant use it.

I'm expecting some simple answer about it, I few like my lack of experience is sabotaging me.