C1111233131211111211113313331333133313133313231211111333132322333131121   >>    C111123313121111121111331333133313331313331323121111133313232233313112   <<    C1111233131211111211113313331333133313133313231211111333132322333131123   >>      C1111233131211111211113313331333133313133313231211111333132322333131122   >>