% test


orig_length=200;
seq=zeros(1,orig_length);

for i=1:orig_length
   seq(1,i)=i;
   i=i+1;
end

for i=1:orig_length
   seq(2*i)=0;
end

h=0;
for i=1:orig_length
   if seq(i)==0,
       h=h+1;
   end
    i=i+1;
    h=h+1;
end

seq