C3132121111133313233121111331333133313331322331333133313223323331313121   >>    C313212111113331323312111133133313331333132233133313331322332333131312   <<    C3132121111133313233121111331333133313331322331333133313223323331313123   >>      C3132121111133313233121111331333133313331322331333133313223323331313122   >>