#include "stdio.h"

 int ant_beep;
 int plass[2][21];
 int brukt[21];
 int lengde;
 int min_lengde;
 int niva;
 int a_x,a_y;
 int k_x,k_y;

main()
{
 int ant_runder;
 int i,j;
 int x_size,y_size;
 int b_x,b_y;

 scanf("%d\n",&ant_runder);


 for(i=1;i<=ant_runder;i++)
 {
  scanf("%d %d\n",&x_size,&y_size);
  scanf("%d %d \n",&k_x,&k_y);
  scanf("%d\n",&ant_beep);

  for(j=1;j<=ant_beep;j++)
  {
   scanf("%d %d \n",&b_x,&b_y);
   plass[0][j]= b_x;
   plass[1][j]= b_y;
   brukt[j] = 0;
  }

  min_lengde = 10000000;

  niva = ant_beep;
  lengde = 0;

  a_x = k_x;
  a_y = k_y;
 
  finn_tur();

  printf("The shortest path has length %d\n",min_lengde);

 }

}


int finn_tur()
{
 int i;
 int g_x,g_y;

/* If at level 0, check if we have a new shortest path */

 if (niva == 0)
 {
   lengde += abs(a_x - k_x) + abs(a_y - k_y);
   if (lengde < min_lengde)
     min_lengde = lengde;
   lengde -= abs(a_x - k_x) + abs(a_y - k_y);
   return;
 }


/* Try each possible available beeper as the next one */

 niva--;

/* Keep current position */

 g_x = a_x;
 g_y = a_y;

 for(i=1;i<=ant_beep;i++)
 {
  if (brukt[i] == 0)
  {

/* Move to beeper number i */

   brukt[i] = 1;
   lengde += abs(g_x - plass[0][i]) + abs(g_y - plass[1][i]);
   a_x = plass[0][i];
   a_y = plass[1][i];
   
/* Finish the tour */

   finn_tur();

/* Move back to current position */

   a_x = g_x;
   a_y = g_y;

   lengde -= abs(g_x - plass[0][i]) + abs(g_y - plass[1][i]);
   brukt[i] = 0;
  }

 }
 niva++;

}