uses crt;
var f:text; i,n,s,d:longint;
a:array[1..100000]of longint;
begin
clrscr;
assign(f,'input.pas');reset(f);
readln(f,n);
for i:=1 to n do
begin
read(f,a[i]);
if a[i] mod 2=1 then inc(s,a[i]);
if a[i] mod 3=0 then inc(d);
end;
close(f);
assign(f,'output.pas');rewrite(f);
writeln(f,'a) ',s);
writeln(f,'b) ',d);
close(f);
end.