aat7 99s7to 89s7t 79s7 69s7to
ljs7to kjs7t jjs7 ijs7to hjs7t
wsr7t vsr7 usr7to tsr7t ssr7
71q7 61q7to 51q7t 41q7 31q7to
ibq7to hbq7t gbq7 fbq7to ebq7t