5al20 4al2 3al208 2al20 1al2

gkk2 fkk208 ekk20 dkk2 ckk208

rtj208 qtj20 ptj2 otj208 ntj20

22i20 12i2 02i208 z2i20 y2i2

dci2 cci208 bci20 aci2 9bi208