C# Online Compiler | .NET Fiddle

using System;
public class Program {
  public static void Main() {
    int a;
    int b = 5;
    int c = 8;

    // =
    a = b + c;
    Console.WriteLine("'=' : " + a);

    // +=
    int x = 5;
    x += 2;
    Console.WriteLine("'+=' : " + x);

    // +-
    int y = 5;
    y -= 2;
    Console.WriteLine("'+=' : " + y);

    // *=
    int z = 5;
    z -= 2;
    Console.WriteLine("'*=' : " + z);

    // /*
    a /= 2;
    Console.WriteLine("'/=' : " + a);

    // %=
    b %= a;
    Console.WriteLine("'%=' : " + b);

    // &=
    a &= b;
    Console.WriteLine("'&=' : " + a);

    //  |=
    b |= a;
    Console.WriteLine("'|=' : " + b);

    //  ^=
    b ^= a;
    Console.WriteLine("'^=' : " + b);

    //  <<=	
    a <<= b;
    Console.WriteLine("'<<=' : " + b);

    //  >>=	
    a >>= b;
    Console.WriteLine("'>>=' : " + b);

  }
}
True