program z_number;
uses crt;
var CounterI: word;
begin
clrscr;
writeln('Все трехзначные числа, кратные трем');
for CounterI := 102 to 999 do
if ((CounterI mod 10) + (CounterI div 10 mod 10) + (CounterI div 100)) mod 3 = 0 then
writeln(CounterI);
readln;
end.