using System;
public class Program
{
internal static void generateFloydTriangle(int rows) {
int number = 1;
for (int i = 1; i <= rows; i++) {
for (int j = 1; j <= i; j++) {
Console.Write(number + " ");
number++;
}
Console.WriteLine();
}
}
public static void Main(string[] args)
{
generateFloydTriangle(6);
}
}
/*
run:
1
2 3
4 5 6
7 8 9 10
11 12 13 14 15
16 17 18 19 20 21
*/