C111123313121111121111331323133313233313232233132313231323132311311   >>    C11112331312111112111133132313331323331323223313231323132313231131   <<    C111123313121111121111331323133313233313232233132313231323132311313   >>      C111123313121111121111331323133313233313232233132313231323132311312   >>