u9er2t t9er2 s9er r9er2t q9er2

5ier2 4ier 3ier2t 2ier2 1ier

gsdr fsdr2t esdr2 dsdr csdr2t

r1cr2t q1cr2 p1cr o1cr2t n1cr2

2acr2 1acr 0acr2t zacr2 yacr