C3132121111331312113313331333133313331323311211113313223332221311   >>    C313212111133131211331333133313331333132331121111331322333222131   <<    C3132121111331312113313331333133313331323311211113313223332221313   >>      C3132121111331312113313331333133313331323311211113313223332221312   >>