create table challenge(
	trail_id 	int unsigned not null,
	challenge 	int unsigned not null,
	start		varchar(100),
	finish		varchar(100)
	);

create table user (
	user_id		int unsigned auto_increment primary key,
	login		varchar(30),
	password	varchar(30),
	email		varchar(60),
	gender		int unsigned 
	);

create table progress(
	trail_id	int unsigned not null,
	challenge	int unsigned not null,
	user_id		int unsigned not null,
	start_time	datetime,
	finish_time	datetime,
	delta 		int unsigned
	);