package main

import (
    "fmt"
    "bufio"
    "os"
    "strconv"
)

func main() {
    var n, t, sum int
    fmt.Scan(&n)
    sc := bufio.NewScanner(os.Stdin)
    sc.Split(bufio.ScanWords)
    
    for i := 0; i < n; i++ {
        sc.Scan()
        t, _ = strconv.Atoi(sc.Text())
        sum += t
    }
    fmt.Println(sum)
}