package main

import ."fmt"

var a, b int
func main()  {
  Scan(&a)
  // b := a
  var list = make([]int, 0)
  for i:=0; i < a; i++ {
    Scan(&b)
    list = append(list, b)
  }

  total := 0
  for _, v := range list {
    total = total + v
  }
  Println(total)
}