#include <algorithm>
#include <array>
#include <string>
#include <functional>
#include <iostream>

using namespace std ;



int main()
{
  int num1 = 1;
  int num2 = 2;

  auto lambda1Obj = [] (int a, int b) {
      return a + b;
       }  ;

  cout << "lambda1Obj invoked: " << lambda1Obj( 5,6) << endl ;

  //invoked right away
  auto sum = [] (int a, int b) {
    return a + b;
  } (num1, num2);

  cout << "The sum of " << num1 << " and " << num2
  << " is " << sum << endl   ;



}