Program solve;
uses crt;
var n,i,s:integer;
d:array[1..100] of Integer;
Begin
clrscr;
write('Nhap n:'); readln(n);
for i:=1 to n do
begin
write('Nhap d[',i,']:'); readln(d[i]);
if d[i]>0 then s:=s+d[i];
end;
writeln('Tong cac so duong trong day:',s);
readln;
End.