Reference Alias Update

#include <iostream>
#include <cstdint>

int main() {
    int32_t a, b;
    std::cin >> a >> b;

    // Write your code here
    int &reference_a = a;        //set value to reference value a
    int &reference_b = b;        //set value to reference value b 

    //update reference value of a
    reference_a += reference_b;

    std::cout << a;
    return 0;
}