class UnsafeCode
{
    struct MyStruct
    {
        public int a;
        public int b;
        public int Sum() 
       { 
           return a / b; 
       }
   }
   unsafe static void Main()
   {
       MyStruct o = new MyStruct();
       MyStruct* p; 
       p = &o;
       p->a = 60; 
       p->b = 15; 
       int c = 30;
       Console.WriteLine("Value is : " + p->Sum()*c);
       Console.ReadLine();
   }
}

 class UnsafeCode
 {
     unsafe static void Main()
     {
         int* p ;
         int ch = 13*5;
         p = &(ch);
         Console.WriteLine(Convert.ToChar(*p));
         if (*p == 'A')
         Console.WriteLine(Convert.ToBoolean(1));
         else
         Console.WriteLine(Convert.ToBoolean(0));
         Console.ReadLine();
     }
 }