Count lines and numbers in textbox input string values

Question

hi,

iam using below code for my below task

task-1		task-2
textbox1		textbox1
1.2.3.		[1.2.3.
4.5.6.		4.5.6.]10.
7.8.9.		7.8.9.
10.11.12.		10.11.12.
		[1.2.
		3.4.]2.
		1.2.3.4
4 = lines - 12=no		27 = lines - 78=no

private void RsButton7_Click_1(object sender, EventArgs e)
        {
            int countLines = 0;
            int countNumbers = 0;
            var stack = new Stack<char>();
           
            int num;

            foreach (string line in txtDraft.Lines)
            {
                if (line.Trim() == "") continue; // ignore blank lines
                string[] items = line.Split('.');
                foreach (string item in items)
                {
                    if (int.TryParse(item, out num)) countNumbers++;
                }
                countLines++;
                rsLabel1.Text = countLines + " = lines" + " - " + countNumbers + " = no".ToString();
                
              
                
            }
        }

task-1 work well using above code.

but i want also like task-2 like above given task-2 input.

please anybody share the update code.

Thanks in Advance.

Varta