can I put a while loop in a while loop in c sharp code example

Example 1: c# while loop

while(condition) 
{
   statement(s);
}
_______________EX.___________________
int a = 0;
while (a < 10)
{
	Console.WriteLine(a); //output>> 0 .. 1 .. 2 ........ 8 .. 9
	a++;
}

Example 2: c# do while loop

do {
   statement(s);
} while( condition );
_______________EX.___________________
int i = 0;

do
{
	Console.WriteLine(i);
	i++;
}
while (i < 5);

============OUTPUT======================
  0
  1
  2
  3
  4