C22121333132313311211113313331333133313331123211113313232113311   >>    C2212133313231331121111331333133313331333112321111331323211331   <<    C22121333132313311211113313331333133313331123211113313232113313   >>      C22121333132313311211113313331333133313331123211113313232113312   >>