try this: (the second and third number is always 1 this is only the first:)
1234567890 (I like this one)
1,234567890
12,34567890 (I like this one)
123,4567890
1234,567890 (I like this one)
12345,67890
123456,7890 (I like this one)
1234567,890
12345678,90
123456789,0 (I like this one)