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  1. using System;
  2.  
  3. public class Test
  4. {
  5. public static void Main()
  6. {
  7. int a=10;
  8. while(a<20){
  9. Console.WriteLine("{0} y {1}",a,++a);
  10. }
  11. }
  12. }
Success #stdin #stdout 0.02s 15924KB
stdin
Standard input is empty
stdout
10 y 11
11 y 12
12 y 13
13 y 14
14 y 15
15 y 16
16 y 17
17 y 18
18 y 19
19 y 20