2b1tr 3b1tr6 4b1t 5b1tr 6b1tr6

r21tr6 s21t t21tr u21tr6 v21t

gt2t ht2tr it2tr6 jt2t kt2tr

5j3tr 6j3tr6 7j3t 8j3tr 9j3tr6

ua4tr6 va4t wa4tr xa4tr6 ya4t