using System;
class Program
{
static void Main() {
int i, j = 12;
for (i = 0, Console.WriteLine($"Start: i={i}, j={j}"); i < j; i++, j--, Console.WriteLine($"Step: i={i}, j={j}")) {
Console.WriteLine("in for loop");
}
}
}
/*
run:
Start: i=0, j=12
in for loop
Step: i=1, j=11
in for loop
Step: i=2, j=10
in for loop
Step: i=3, j=9
in for loop
Step: i=4, j=8
in for loop
Step: i=5, j=7
in for loop
Step: i=6, j=6
*/