Help me in solving LCPPCL28 problem

help
,
1

My issue

compilation error occured

My code

#include <iostream>
using namespace std;

int main() {
    // Assign the value 23 to a
var 'a' =23;
var 'b' =20;
cout<< a+b;
    
    // Assign the value 20 to b

    
    // Output the sum of a and b
}

Learning course: ATT - C++
Problem Link: Addition of Variables Practice Problem in ATT - C++ - CodeChef

2

int a=23;
int b=20;
cout<<a+b;