var a:array [1..10] of integer;
i,s:integer;
begin
s:=0;
writeln ('Ââåäèòå 10 ÷èñåë');
for i:=1 to 10 do begin
readln (a[i]);
end;
for i:=1 to 10 do 
if (a[i] mod 3=0) then s:=s+a[i];
write ('Summ=',s);
end.