insert into up values ('a32','a16');
insert into up values ('a34','a17');
insert into up values ('a36','a18');
insert into up values ('a38','a19');
insert into up values ('a40','a20');
insert into up values ('a42','a21');
insert into up values ('a44','a22');
insert into up values ('a46','a23');
insert into up values ('a48','a24');
insert into up values ('a50','a25');
insert into up values ('a52','a26');
insert into up values ('a54','a27');
insert into up values ('a56','a28');
insert into up values ('a58','a29');
insert into up values ('a60','a30');
insert into up values ('a62','a31');

insert into up values ('a16','a8');
insert into up values ('a18','a9');
insert into up values ('a20','a10');
insert into up values ('a22','a11');
insert into up values ('a24','a12');
insert into up values ('a26','a13');
insert into up values ('a28','a14');
insert into up values ('a30','a15');

insert into up values ('a8','a');
insert into up values ('a10','a5');
insert into up values ('a12','a6');
insert into up values ('a14','a7');

insert into up values ('a','a2');
insert into up values ('a6','a3');

insert into up values ('a2','a1');
