C1111233131211111211113313331333133313331312331333132322332213111   >>    C111123313121111121111331333133313331333131233133313232233221311   <<    C1111233131211111211113313331333133313331312331333132322332213113   >>      C1111233131211111211113313331333133313331312331333132322332213112   >>