function bigc=bigc(g)
small = letterc(g);
[nx ny] = size(small);
mag = 4;
bigc = zeros(mag*nx,mag*ny);
ii = 0;
for i=1:mag:(mag)*nx
    ii = ii+1;
    jj = 0;
   for j=1:mag:(mag)*ny
       jj = jj+1;
       bigc(i:i+mag,j:j+mag)= small(ii,jj);
   end
end