C3132121111331312113313331333133313331322121133133313221121132321   >>    C313212111133131211331333133313331333132212113313331322112113232   <<    C3132121111331312113313331333133313331322121133133313221121132323   >>      C3132121111331312113313331333133313331322121133133313221121132322   >>