uses crt;

var a:array[1..100]of integer;

i,n,t,s:integer;

begin

clrscr;

write('Nhap n='); readln(n);</p><p>for i:=1 to n do </p><p>  begin</p><p>write('A[',i,']='); readln(a[i]);

end;

t:=0;

s:=1;

dem:=0;

for i:=1 to n do 

  if a[i] mod 3=0 then 

begin

inc(dem);

t:=t+a[i];

s:=s*a[i];

end;

if dem=0 then writeln('Khong co so chia het cho 3 trong day')

else begin

writeln('Tong cac so chia het cho 3 la: ',t);

writeln('Tich cac so chia het cho 3 la: ',s);

end;

readln;

end.