ybf2 zbf2x 0bf2xk 1bf2 2bf2x

n2f2x o2f2xk p2f2 q2f2x r2f2xk

ctg2xk dtg2 etg2x ftg2xk gtg2

1jh2 2jh2x 3jh2xk 4jh2 5jh2x

qai2x rai2xk sai2 tai2x uai2xk