120i 220ib 320ib4 420i 520ib

qt1ib rt1ib4 st1i tt1ib ut1ib4

fk2ib4 gk2i hk2ib ik2ib4 jk2i

4a3i 5a3ib 6a3ib4 7a3i 8a3ib

t13ib u13ib4 v13i w13ib x13ib4