void printmenu()
{
      printf("1. Read input from text file\n");
      printf("2. Print total number of gates\n");
      printf("3. Print total number of isles\n");
      printf("4. Find total number of direct and undirect connected cells of a walkable cell\n");
      printf("5. Find whether or not can the treasure cell reachable\n");
      printf("6. Exit program\n");
}
int main()
{
      int a;
      int thoat = 0;
      while (thoat == 0)
      {
            printmenu();
            scanf("%d", &a);
            switch (a)
            {
            case 1:
                  printf("mot\n");
                  break;
            case 2:
                  printf("hai\n");
                  break;
            case 3:
                  printf("ba\n");
                  break;
            case 4:
                  printf("bon\n");
                  break;
            case 5:
                  printf("nam\n");
                  break;
            case 6:
                  printf("Exit\n");
                  thoat = 1;
                  break;
            default:
                  break;
            }
      }
      return 0;
}