program mang;
uses crt;
var
a: array[1..100] of integer
i,n:integer;
begin
clrscr;
write('nhap so phan tu n=');readln(n);
for i:=1 to n do
begin
write('nhap phan tu thu ',i');readln(a[i]);
end;
for i:=1 to n do
if a[i]>0 then write(a[i]);
readln;
end.