I am a newbie in programming and I am facing problem in adding and 
subtracting numbers, which also involves carrying of a number. A 
program to add , subtract and multiply digits in the traditional 
manner of carrying and borrowing. In this program no arrays have been 
used, instead the concept of GIGO (Garbage In Garbage Out) is used for 
carrying out the process. the goal is to calculate the digits in the 
traditional manner, which is illustrated in the process.

If a.Length > b.Length Then
z = equallength(a, b)
TextBox2.Text = z
ElsIf b.Length > a.Length Then
z = equallength(b, a)
print z