C1111233131211111211113313331333133313331322322331312111111113313132311   >>    C111123313121111121111331333133313331333132232233131211111111331313231   <<    C1111233131211111211113313331333133313331322322331312111111113313132313   >>      C1111233131211111211113313331333133313331322322331312111111113313132312   >>