Я нашла 9:
10002, 10020, 10200, 12000, 21000, 20100, 20010, 20001, 30000
10002
10020
10200
12000
21000
20100
20010
20001
30000
Я нашла 9:
10002, 10020, 10200, 12000, 21000, 20100, 20010, 20001, 30000
10002
10020
10200
12000
21000
20100
20010
20001
30000