using System;
using System.Collections.Generic;
using System.Linq;
class MainClass {
static void Main() {
int i = 0;
while (i < 21)
{
Console.WriteLine(i);
i++;
}
Console.WriteLine("####################");
int p = 5;
while (p < 21)
{
Console.WriteLine(p);
p++;
}
Console.WriteLine("####################");
int d = 10;
while (d > 0)
{
Console.WriteLine(d);
d--;
}
Console.WriteLine("####################");
int m = 0;
while (m < 70)
{
m = m + 1 * 7;
Console.WriteLine(m);
}
}
}