21100
81200
97002
94001
10060
98001
96002
10030
41670
31004
52700
53600
91000
10010
45230
65450
35002
51140
62230
30001
10020
56680
32005
30003
10050
98000
10040
38007
20700
10070
57740
71200
41170
31006
00000
100

The program (before the 00000) reads in a
single number x, and prints out all of the
primes <= x.  If x < 2, then 2 will be printed.