C3123223313331322121111331333133313231333132212111113331322123331   >>    C312322331333132212111133133313331323133313221211111333132212333   <<    C3123223313331322121111331333133313231333132212111113331322123333   >>      C3123223313331322121111331333133313231333132212111113331322123332   >>