uses crt;
var a,b,c,s,x:integer;
begin
clrscr;
write('hs_lop');
writeln('nhap 3 so=');readln(a,b,c);
begin
s:=a+b+c;
writeln('tong la:',s);
x:=a*b*c;
writeln('tich la:',x);
end;
if a mod 2 =0 then writeln(a,'la so chan')
else write('a,'la so le');
readln;
end.
mình ko chắc pn kt thử xem