ibtbh1 jbtb kbtbh lbtbh1 mbtb

71tb 81tbh 91tbh1 a2tb b2tbh

wsubh xsubh1 ysub zsubh 0subh1

ljvbh1 mjvb njvbh ojvbh1 pjvb

aawb bawbh cawbh1 dawb eawbh