C111123313121111121111331323133313233313232233132313331323133313132311   >>    C11112331312111112111133132313331323331323223313231333132313331313231   <<    C111123313121111121111331323133313233313232233132313331323133313132313   >>      C111123313121111121111331323133313233313232233132313331323133313132312   >>