function Main(input) {
    const input_data = input.split("\n");
    const N = parseInt(input_data[0]);
    const numbers = input_data[1].split(" ");
    var sum = 0;
    for (i = 0; i < N; i++) {
        sum += parseInt(numbers[i]);
    }
    console.log(sum);
}
Main(require("fs").readFileSync("/dev/stdin", "utf8"));