Return back to the main function after while loop

I have this code

table = [ 0 2 2 2 ; 1 0 0 2; 1 0 1 2; 1 1 0 0; 1 1 0 1];
code =[ 0 0 1 1 0 1 1 1 0 0 1 1 1 0 0 0];
 n=1;result=[];loop=0;m=1;

while n <=16
    [x,y]=find(table(:,1)==code(n)); %MAIN%
    
    if length(x)==1                  % option 1 %
        
        result=[result,x];
        n=n+1;
   
     if length(x)>1                 % option 2 %
        while length(x)>1
            [x,y]= find (code(n)== table(:,m));
            n=n+1;
            m=m+1;   
        end
        result=[result,x];
        
   
     end 
    end
end

How can I return to the %MAIN% after finish with % option 2 % ? Is there something missing?

The answer I got is

result = 1 1 5 

It seems that after % option 2 % finished, it does not return into % Main %

The answer should be

result = 1 1 5 4 1 1 2 1

[Walter Roberson]

you increment n within the inner while loop. that can easily cause n to get towards the 16 that is the end of the outer while loop.