'use strict';

const fs = require('fs');

process.stdin.resume();

process.stdin.setEncoding('utf-8');

let inputString = '';

let currentLine = 0;

process.stdin.on('data', inputStdin => {

inputString += inputStdin;

});

process.stdin.on('end', _ => {

inputString = inputString.trim().split(' ').map(str => str.trim());

main();

});

function readLine() {

return inputString[currentLine++];

}

/*

* Complete the simpleArraySum function below.

*/

function simpleArraySum(ar) {

/*

Complete the simpleArraySum function below.

*/

function simpleArraySum(ar) {

*/

}

function main() {

const ws = fs.createWriteStream(process.env.OUTPUT_PATH);

const arCount = parseInt(readLine(), 10);

const ar = readLine().split(' ').map(arTemp => parseInt(arTemp, 10));

let result = simpleArraySum(ar);

ws.write(result + " ");

ws.end();

}