0oa1xn 1oa1 2oa1x 3oa1xn 4oa1

pfb1 qfb1x rfb1xn sfb1 tfb1x

e6b1x f6b1xn g6b1 h6b1x i6b1xn

3wc1xn 4wc1 5wc1x 6wc1xn 7wc1

snd1 tnd1x und1xn vnd1 wnd1x