uses crt;
var m:array[1..1000000] of longint;
n,i,s,d:longint;
begin
clrscr;
write('Nhap so luong phan tu: '); readln(n);
for i:=1 to n do
begin
write('Nhap gia tri phan tu thu ',i,': '); readln(m[i]);
end;
write('- Cac phan tu cua mang: ');
for i:=1 to n do write(m[i],' '); writeln;
write('- 10 phan tu tren mot dong: ');
for i:=1 to n do
begin
if d mod 10=0 then writeln;
write(m[i],' ');
inc(d);
end;
writeln;
for i:=1 to n do if i mod 2=1 then inc(s,m[i]);
writeln('- Tong cac so le: ',s);
readln;
end.