program ct;
uses crt;
var s,i,n:integer;
A:array[1..100] of integer;
begin
clrscr;
write('nhap n:=');readln(n);
for i:=1 to n do
begin
writeln('nhap mang a[',i,']:=');readln(a[i]);
end;
s:=0;
for i:=1 to n do
if a[i] mod 2=0 then s:=s+a[i];
writeln('tong cac so chan la ',s);
if a[i] mod 3=0 then writeln('cac so chia het cho 3 la',a[i]:2);
readln
end.