1drop table if exists con, aux, nul, lpt1, com1, `clock$`;
2create table con (a int);
3drop table con;
4create table aux (a int);
5drop table aux;
6create table nul (a int);
7drop table nul;
8create table lpt1 (a int);
9drop table lpt1;
10create table com1 (a int);
11drop table com1;
12create table `clock$` (a int);
13drop table `clock$`;
14