uses crt;
var a: array[1..100] of integer;
i,n: integer;
begin
clrscr;
write ('nhap n: ');  readln (n);
writeln ('nhap mang: ');
for i:=1 to n do readln (a[i]);
writeln ('cac phan tu chia het cho 3 la: ');
for i:=1 to n do if a[i] mod 3=0 then write (a[i]:4);
readln;
end.
`text{#Trumtinhoc}`

uses crt;

var A : array [1 .. 200] of integer;

i, n : integer;

begin

clrscr;

write('Nhap so phan tu, n = '); readln(n);

write('Nhap mang gom ', n ,' phan tu : ');

for i := 1 to n do read(A[i]);

write('Cac phan tu chia het cho 3 : ');

for i := 1 to n do 

   if A[i] mod 3 = 0 then write(A[i],' ');

readln

end.