[9999: 99, 999(9), 999, 999 999, 99 9999]
99 999999
99: 9999999 99999999?
999(9): 999999999 999999 99999999 99999999.
999: 99 99!
999 999: 999? 99999 999999?
99: 9999;;
999: 999...
(99 9999, 999999.)
99 9999: 999~!
999: 9999!
999 999: 9??
99 9999: 99 999 99999. 9999 9999.
999999999...
9999 99999!