def calculate_sum():

  result = 10 + 20

  print(result)

​

calculate_sum()

print(result)

function calculateSum() {

  let result = 10 + 20;

  console.log(result);

}

​

calculateSum();

console.log(result);

public class Main {

  public static void calculateSum() {

    int result = 10 + 20;

    System.out.println(result);

  }

  public static void main(String[] args) {

    calculateSum();

    System.out.println(result);

  }

}

#include <iostream>

using namespace std;

​

void calculateSum() {

  int result = 10 + 20;

  cout << result << endl;

}

​

int main() {

  calculateSum();

  cout << result;

  return 0;

}