uses crt;
var n,a,i,b,c,d:integer;
begin
clrscr;
write('Nhap n:');readln(n);
for i := 1 to n do
begin
write('so thu ',i,'=');readln(a);
if a>0 then inc(b);
if (a mod 2 =0) and (a<>0) then inc(c) else inc(d);
end;
writeln('Co ',b,' so duong');
writeln('Co ',c,' so chan');
write('Co ',d,' so le');
readln
end.