/ vs >>

using System;

class Program
{
    static void Main()
    {
        int a = Console.Read();
        int b = a / 2;
        Console.WriteLine(b);
    }
}

.method private hidebysig static void  Main() cil managed
{
  .entrypoint
  // Code size       19 (0x13)
  .maxstack  2
  .locals init (int32 V_0,
           int32 V_1)
  IL_0000:  nop
  IL_0001:  call       int32 [mscorlib]System.Console::Read()
  IL_0006:  stloc.0
  IL_0007:  ldloc.0
  IL_0008:  ldc.i4.2
  IL_0009:  div
  IL_000a:  stloc.1
  IL_000b:  ldloc.1
  IL_000c:  call       void [mscorlib]System.Console::WriteLine(int32)
  IL_0011:  nop
  IL_0012:  ret
} // end of method Program::Main

----------------------------------------------------

using System;

class Program
{
    static void Main()
    {
        int a = Console.Read();
        int b = a >> 1;
        Console.WriteLine(b);
    }
}

.method private hidebysig static void  Main() cil managed
{
  .entrypoint
  // Code size       19 (0x13)
  .maxstack  2
  .locals init (int32 V_0,
           int32 V_1)
  IL_0000:  nop
  IL_0001:  call       int32 [mscorlib]System.Console::Read()
  IL_0006:  stloc.0
  IL_0007:  ldloc.0
  IL_0008:  ldc.i4.1
  IL_0009:  shr
  IL_000a:  stloc.1
  IL_000b:  ldloc.1
  IL_000c:  call       void [mscorlib]System.Console::WriteLine(int32)
  IL_0011:  nop
  IL_0012:  ret
} // end of method Program::Main