package main
import (
    "fmt"
    "os"
    "bufio"
    "strconv"
)
var sc = bufio.NewScanner(os.Stdin)



func main() {
    sc.Split(bufio.ScanWords)
    // code goes here
    
    n := nextInt()
    total := int64(0)
    for i := int64(0); i < n; i += 1 {
        total += nextInt()
    }
    fmt.Println(total)
}



func nextInt() int64 {
    sc.Scan()
    v, e := strconv.ParseInt(sc.Text(), 10, 64)
    if e != nil {
        panic(e)
    }
    return v
}
func nextString() string {
    sc.Scan()
    return sc.Text()
}
func nextFloat() float64 {
    sc.Scan()
    v, e := strconv.ParseFloat(sc.Text(), 64)
    if e != nil {
        panic(e)
    }
    return v
}