C3213322333133313113313221211113313331333133313121121123212212322131   >>    C321332233313331311331322121111331333133313331312112112321221232213   <<    C3213322333133313113313221211113313331333133313121121123212212322133   >>      C3213322333133313113313221211113313331333133313121121123212212322132   >>