FLAMES code sample written in .NET What is FLAMES you ask?

FLAMES .NET code sample

My name is mahesh from jamshedpur (INDIA) . This is my second application using C#. In this Application I used GDI+ .
In India,  North-Indian teenagers (but I am southIndian (A.P)) following small formula for choosing a boyfriend or girlfriend. That is FLAMES.  This is a fun  application I developed in java also after writing this same logic in C# I came to know in C# easy to develop applications. Note:
Flames is a funny logic in this testing if this example has caused any problems, please excuse me its only meant for fun!


What is FLAMES?
F for Friend
L for Lover
A for Affair
M for Marriage 
E for Enemy
S for Sister 

How the calculation?
Take guy name and girl name 
Example: Rama and Sita
1.cut all common words in those names, now the remaining words are rma and sit

2.Now calculate all the words, that is 6 words

3.Now take FLAMES calculate from the F and cut it on 6th letter

Example:
After cutting the FLAMES
FLAME

4. Now again calculate form the next word keep on calculate until you will get one word
that will decide your relationship.

public void check1()
{
String flames="FLAMES";
String guy1=guyt.Text;
String gal1=galt.Text;
StringBuilder sb=new StringBuilder(guy1);
StringBuilder sb1=new StringBuilder(gal1);
StringBuilder sb2=new StringBuilder(flames);
int x=sb.Length;
int y=sb1.Length;
if((x==1)||(y==1)||(x==0)||(y==0))
{
MessageBox.Show(“Invalid Entry");
} else  {
begin:
for(int i=0;i<gal1.Length;i++)    {
int xx=guy1.IndexOf(gal1[i]);
if(xx!=-1) {
sb.Remove(xx,1);
sb1.Remove(i,1);
guy1=sb.ToString();
gal1=sb1.ToString();
goto begin;
}                
}
int count=sb.Length+sb1.Length;
//checking in FLAMES
if(count!=0){
int c=0;
int c1=0;
--count;
int u=flames.Length;
do{
if(c1==count)    {
sb2.Remove(c,1);
flames=sb2.ToString();
c1=0;        }
u=flames.Length;
--u;
if(c>u)         c=0;
if(c==u)          c=-1;
++c;
++c1;
}while(flames.Length!=1);