au2o bu2oe cu2oec du2o eu2oe

zk3oe 0k3oec 1k3o 2k3oe 3k3oec

ob4oec pb4o qb4oe rb4oec sb4o

d24o e24oe f24oec g24o h24oe

2s5oe 3s5oec 4s5o 5s5oe 6s5oec