Sub rev_num(ByRef n As Long) Dim a, rev, i As Long a = n While (n > 0) i = n Mod 10 n /= 10 rev = (rev * 10) + i End While Console.WriteLine() Console.WriteLine() Console.WriteLine("==============================") If (rev = a) Then Console.WriteLine(" :=> " & a & " is PALINDROM.") Else Console.WriteLine(" :=> " & a & " is Not PALINDROM.") End If Console.WriteLine("==============================") End Sub Sub Main() Dim n As Long Console.Write("Enter the Number :=>") n = Console.ReadLine() rev_num(n) Console.ReadLine() End Sub