0
1
2
7
8
9
10
11
99
100
101
127
128
129
254
255
256
999
1000
1001
9999
10000
10001
32766
32767
32768
65534
65535
65536
99999
100000
100001
999999
1000000
1000001
9999999
10000000
10000001
99999999
100000000
100000001
999999999
1000000000
1000000001
2147483647
4294967295