C3123223313331322121111331333133313231333132212111111213331313233311   >>    C312322331333132212111133133313331323133313221211111121333131323331   <<    C3123223313331322121111331333133313231333132212111111213331313233313   >>      C3123223313331322121111331333133313231333132212111111213331313233312   >>