C3132121111133313233121111331333133313331333133313331333133313123221321   >>    C313212111113331323312111133133313331333133313331333133313331312322132   <<    C3132121111133313233121111331333133313331333133313331333133313123221323   >>      C3132121111133313233121111331333133313331333133313331333133313123221322   >>