1)  var n,i:integer;
begin
for i:=1 to 500 do
if (i mod 3=0) and (i mod 10=4) then
writeln (i);
readln;
end.

2) 

var a,b:integer;
begin
readln (a,b);
while (a<>0) and (b<>0) do
if a>b then a:=a mod b
else b:=b mod a;
writeln (a+b);
readln;
end.