C3132121111133313233121111331333133313331312121111331333131333133313223323131   >>    C313212111113331323312111133133313331333131212111133133313133313331322332313   <<    C3132121111133313233121111331333133313331312121111331333131333133313223323133   >>      C3132121111133313233121111331333133313331312121111331333131333133313223323132   >>