program BT;
uses crt;
var x,y,i,d: integer;
Begin
clrscr;
write('Nhap x: '); readln(x);
write('Nhap y: '); readln(y);
write('Cac so chia het cho 3 tu ',x,' den ',y,': ');
if x<y then
begin
for i:=x to y do
if i mod 3=0 then
begin
write(i,' ');
d:=d+1;
end;
end
else write('0');
readln
End.