func main()
    var n : int
    var x : int
    var total : int
    var existed: bool
    
    do n :: cui@input().toInt(&existed)
    do total :: 0
    
    for cnt(0, n-1)
        do x :: cui@input().toInt(&existed)
        do total :: total + x 
    end for
    
    do cui@print(total.toStr())
    
end func