5rert 4rer 3rert2 2rert 1rer

g1dr f1drt2 e1drt d1dr c1drt2

radrt2 qadrt padr oadrt2 nadrt

2jcrt 1jcr 0jcrt2 zjcrt yjcr

dtbr ctbrt2 btbrt atbr 9sbrt2