How should I choise some digit from number ,for example the number is " 1234456782 " and i want choise only 2-4-6-8?
<p>C# 
1-I have this  group number "123 456 7892"
2-I write at console " c# ", to read it 
write for me " 2 - 4- 6- 8 "
I want choise only  the numberes  " 2 - 4- 6- 8 " ,in c# how can I choise ?</p>
