.net - c# Getting runtime error. Why? -

hey im trying solve problem kattis says runtime error means uncaught exception. https://open.kattis.com/problems/fizzbuzz

is there ive missed in code crashes app?

public static void main(string[] args) {     string line = "";     while ((line = console.readline()) != "0")     {          var numbers = line.split(' ').select(int.parse).tolist();         int x = numbers[0];         int y = numbers[1];         int n = numbers[2];         for(int = 1; <= n; i++)         {             bool found = false;             bool found2 = false;             if(i % x == 0)             {                 if(i % y==0)                 {                     console.writeline("fizzbuzz");                     found2 = true;                 }                 else                 {                     console.writeline("fizz");                     found = true;                                            }             }             if(i % y == 0 && !found2)             {                 console.writeline("buzz");                 found = true;             }             if(!found && !found2)             {                 console.writeline(i);             }         }        } } 

the way read problem you'll given 1 line of 3 numbers on console. should doing 1 readline. suggest removing while loop , do.

var numbers = console.readline().split(' ').select(int.parse).tolist();