2scxr 1scx 0scxrb zscxr yscx

d2bx c2bxrb b2bxr a2bx 91bxrb

obbxrb nbbxr mbbx lbbxrb kbbxr

zkaxr ykax xkaxrb wkaxr vkax

au9w 9t9wrb 8t9wr 7t9w 6t9wrb