C3132121111133313233121111331333133313331333133313331333133313232211211231   >>    C313212111113331323312111133133313331333133313331333133313331323221121123   <<    C3132121111133313233121111331333133313331333133313331333133313232211211233   >>      C3132121111133313233121111331333133313331333133313331333133313232211211232   >>