C111123313121111121111331333133313231323132322331333132233132331233132313113311   >>    C11112331312111112111133133313331323132313232233133313223313233123313231311331   <<    C111123313121111121111331333133313231323132322331333132233132331233132313113313   >>      C111123313121111121111331333133313231323132322331333132233132331233132313113312   >>