C3132121111133313233121111331333133313331312121111331333133313221122112121   >>    C313212111113331323312111133133313331333131212111133133313331322112211212   <<    C3132121111133313233121111331333133313331312121111331333133313221122112123   >>      C3132121111133313233121111331333133313331312121111331333133313221122112122   >>