td3br ud3br3 vd3b wd3br xd3br3

i43br3 j43b k43br l43br3 m43b

7u4b 8u4br 9u4br3 av4b bv4br

wl5br xl5br3 yl5b zl5br 0l5br3

lc6br3 mc6b nc6br oc6br3 pc6b