program bt;
var a:array[1..1000] : integer;
i,n,t:integer;
begin
write('nhap so phan tu cua mang');
readln(n);
for i:=1 to n do
begin
write('phan tu thu ',i,' : ');
readln(a[i]);
end;
for i:=1 to n do
t:= t + a[i]
write('tong cac phan tu trong mang la :',t);
readln
end.

import java.util.Scanner;
public class Main{
    public static void main(String[] args){
        Scanner stdin = new Scanner(System.in);
        System.out.print("Nhap n: ");
        int n = stdin.nextInt();
        int[] a = new int[n];
        int tong=0;
        for (int i=0; i<n; i++){
            System.out.print("Nhap a["+(i+1)+"]: ");
            a[i] = stdin.nextInt();
            tong+=a[i];
        }
        stdin.close();
        System.out.print("Tong: "+tong);
    }
}

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