public static int BasamakDegeri(int sayi, int basamak)
return (int) ((sayi % Math.Pow(10,basamak)) / Math.Pow(10,basamak-1));
public static void Main()
for(int i =10000;i<=21000;i++)
toplam += BasamakDegeri(i,5);
toplam += BasamakDegeri(i,4);
toplam += BasamakDegeri(i,3);
toplam += BasamakDegeri(i,2);
toplam += BasamakDegeri(i,1);
int birinci = BasamakDegeri(i,1);
int ikinci = BasamakDegeri(i,2);
int ucuncu = BasamakDegeri(i,3);
int dorduncu = BasamakDegeri(i,4);
int besinci = BasamakDegeri(i,5);
Console.Write(birinci+""+ikinci+"???"+",");