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  <nameOfIssuer>3M Company</nameOfIssuer>
  <titleOfClass>COM</titleOfClass>
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  <value>28915</value>
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<infoTable>
  <nameOfIssuer>AbbVie, Inc.</nameOfIssuer>
  <titleOfClass>COM</titleOfClass>
  <cusip>00287Y109</cusip>
  <value>33653</value>
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<infoTable>
  <nameOfIssuer>ACI Worldwide, Inc.</nameOfIssuer>
  <titleOfClass>COM</titleOfClass>
  <cusip>004498101</cusip>
  <value>22540</value>
  <shrsOrPrnAmt>
    <sshPrnamt>933322</sshPrnamt>
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    <Sole>881703</Sole>
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    <None>51619</None>
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<infoTable>
  <nameOfIssuer>Advance Auto Parts, Inc.</nameOfIssuer>
  <titleOfClass>COM</titleOfClass>
  <cusip>00751Y106</cusip>
  <value>55223</value>
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    <sshPrnamt>591757</sshPrnamt>
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    <Sole>498922</Sole>
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  <nameOfIssuer>AES Corporation</nameOfIssuer>
  <titleOfClass>COM</titleOfClass>
  <cusip>00130H105</cusip>
  <value>76714</value>
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    <sshPrnamt>5640761</sshPrnamt>
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    <Sole>4288943</Sole>
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  <nameOfIssuer>Air Transport Services Group, </nameOfIssuer>
  <titleOfClass>COM</titleOfClass>
  <cusip>00922R105</cusip>
  <value>100920</value>
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    <sshPrnamt>5520769</sshPrnamt>
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    <Sole>5252948</Sole>
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<infoTable>
  <nameOfIssuer>Allegheny Technologies Incorpo</nameOfIssuer>
  <titleOfClass>COM</titleOfClass>
  <cusip>01741R102</cusip>
  <value>17723</value>
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    <sshPrnamt>2085035</sshPrnamt>
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    <Sole>1984655</Sole>
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    <None>100380</None>
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<infoTable>
  <nameOfIssuer>Alphabet Inc. Class C</nameOfIssuer>
  <titleOfClass>COM</titleOfClass>
  <cusip>02079K107</cusip>
  <value>37858</value>
  <shrsOrPrnAmt>
    <sshPrnamt>32557</sshPrnamt>
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  <votingAuthority>
    <Sole>21948</Sole>
    <Shared>0</Shared>
    <None>10609</None>
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<infoTable>
  <nameOfIssuer>America Movil SAB de CV Sponso</nameOfIssuer>
  <titleOfClass>COM</titleOfClass>
  <cusip>02364W105</cusip>
  <value>151</value>
  <shrsOrPrnAmt>
    <sshPrnamt>12811</sshPrnamt>
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  <votingAuthority>
    <Sole>12811</Sole>
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    <None>0</None>
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<infoTable>
  <nameOfIssuer>American Express Company</nameOfIssuer>
  <titleOfClass>COM</titleOfClass>
  <cusip>025816109</cusip>
  <value>1449</value>
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    <sshPrnamt>16923</sshPrnamt>
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    <Sole>16923</Sole>
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    <None>0</None>
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<infoTable>
  <nameOfIssuer>Amgen Inc.</nameOfIssuer>
  <titleOfClass>COM</titleOfClass>
  <cusip>031162100</cusip>
  <value>40554</value>
  <shrsOrPrnAmt>
    <sshPrnamt>200039</sshPrnamt>
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  <votingAuthority>
    <Sole>169212</Sole>
    <Shared>0</Shared>
    <None>30827</None>
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<infoTable>
  <nameOfIssuer>AptarGroup, Inc.</nameOfIssuer>
  <titleOfClass>COM</titleOfClass>
  <cusip>038336103</cusip>
  <value>564</value>
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    <sshPrnamt>5670</sshPrnamt>
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    <Sole>5670</Sole>
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    <None>0</None>
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  <nameOfIssuer>Arcosa Inc</nameOfIssuer>
  <titleOfClass>COM</titleOfClass>
  <cusip>039653100</cusip>
  <value>12994</value>
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    <sshPrnamt>326985</sshPrnamt>
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  <votingAuthority>
    <Sole>306282</Sole>
    <Shared>0</Shared>
    <None>20703</None>
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<infoTable>
  <nameOfIssuer>Argan, Inc.</nameOfIssuer>
  <titleOfClass>COM</titleOfClass>
  <cusip>04010E109</cusip>
  <value>48145</value>
  <shrsOrPrnAmt>
    <sshPrnamt>1392673</sshPrnamt>
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  <votingAuthority>
    <Sole>1328824</Sole>
    <Shared>0</Shared>
    <None>63849</None>
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<infoTable>
  <nameOfIssuer>Armstrong World Industries, In</nameOfIssuer>
  <titleOfClass>COM</titleOfClass>
  <cusip>04247X102</cusip>
  <value>32782</value>
  <shrsOrPrnAmt>
    <sshPrnamt>412764</sshPrnamt>
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  <votingAuthority>
    <Sole>386781</Sole>
    <Shared>0</Shared>
    <None>25983</None>
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<infoTable>
  <nameOfIssuer>Atkore International Group Inc</nameOfIssuer>
  <titleOfClass>COM</titleOfClass>
  <cusip>047649108</cusip>
  <value>10150</value>
  <shrsOrPrnAmt>
    <sshPrnamt>481712</sshPrnamt>
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  <votingAuthority>
    <Sole>461278</Sole>
    <Shared>0</Shared>
    <None>20434</None>
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<infoTable>
  <nameOfIssuer>Atlantica Yield plc</nameOfIssuer>
  <titleOfClass>COM</titleOfClass>
  <cusip>G0751N103</cusip>
  <value>25054</value>
  <shrsOrPrnAmt>
    <sshPrnamt>1123478</sshPrnamt>
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  <investmentDiscretion>SOLE</investmentDiscretion>
  <votingAuthority>
    <Sole>971499</Sole>
    <Shared>0</Shared>
    <None>151979</None>
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<infoTable>
  <nameOfIssuer>Avaya Holdings Corp.</nameOfIssuer>
  <titleOfClass>COM</titleOfClass>
  <cusip>05351X101</cusip>
  <value>32076</value>
  <shrsOrPrnAmt>
    <sshPrnamt>3964866</sshPrnamt>
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    <Sole>3779940</Sole>
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    <None>184926</None>
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<infoTable>
  <nameOfIssuer>Axis Capital Holdings Limited</nameOfIssuer>
  <titleOfClass>COM</titleOfClass>
  <cusip>G0692U109</cusip>
  <value>57890</value>
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    <sshPrnamt>1497792</sshPrnamt>
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  <votingAuthority>
    <Sole>1371832</Sole>
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    <None>125960</None>
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<infoTable>
  <nameOfIssuer>Barrett Business Services, Inc</nameOfIssuer>
  <titleOfClass>COM</titleOfClass>
  <cusip>068463108</cusip>
  <value>5315</value>
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    <Sole>117812</Sole>
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    <None>16268</None>
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<infoTable>
  <nameOfIssuer>Berkshire Hathaway Inc. Class </nameOfIssuer>
  <titleOfClass>COM</titleOfClass>
  <cusip>084670702</cusip>
  <value>90891</value>
  <shrsOrPrnAmt>
    <sshPrnamt>497133</sshPrnamt>
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  <votingAuthority>
    <Sole>327233</Sole>
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    <None>169900</None>
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<infoTable>
  <nameOfIssuer>Biglari Holdings, Inc. Class A</nameOfIssuer>
  <titleOfClass>COM</titleOfClass>
  <cusip>08986R408</cusip>
  <value>1242</value>
  <shrsOrPrnAmt>
    <sshPrnamt>4181</sshPrnamt>
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  <votingAuthority>
    <Sole>3913</Sole>
    <Shared>0</Shared>
    <None>268</None>
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<infoTable>
  <nameOfIssuer>BJ&apos;s Wholesale Club Holdings, </nameOfIssuer>
  <titleOfClass>COM</titleOfClass>
  <cusip>05550J101</cusip>
  <value>68108</value>
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    <Sole>2547519</Sole>
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    <None>126532</None>
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<infoTable>
  <nameOfIssuer>Blackstone Group Inc. Class A</nameOfIssuer>
  <titleOfClass>COM</titleOfClass>
  <cusip>09260D107</cusip>
  <value>501</value>
  <shrsOrPrnAmt>
    <sshPrnamt>10989</sshPrnamt>
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  <votingAuthority>
    <Sole>10989</Sole>
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    <None>0</None>
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<infoTable>
  <nameOfIssuer>Booking Holdings Inc.</nameOfIssuer>
  <titleOfClass>COM</titleOfClass>
  <cusip>09857L108</cusip>
  <value>1854</value>
  <shrsOrPrnAmt>
    <sshPrnamt>1378</sshPrnamt>
    <sshPrnamtType>SH</sshPrnamtType>
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    <Sole>1378</Sole>
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    <None>0</None>
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<infoTable>
  <nameOfIssuer>Bristol-Myers Squibb Company</nameOfIssuer>
  <titleOfClass>COM</titleOfClass>
  <cusip>110122108</cusip>
  <value>59302</value>
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    <Sole>899466</Sole>
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    <None>164439</None>
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<infoTable>
  <nameOfIssuer>Brookfield Asset Management In</nameOfIssuer>
  <titleOfClass>COM</titleOfClass>
  <cusip>112585104</cusip>
  <value>40688</value>
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    <Sole>603979</Sole>
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    <None>315518</None>
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<infoTable>
  <nameOfIssuer>Cannae Holdings, Inc.</nameOfIssuer>
  <titleOfClass>COM</titleOfClass>
  <cusip>13765N107</cusip>
  <value>152636</value>
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    <sshPrnamt>4557671</sshPrnamt>
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  <votingAuthority>
    <Sole>4102545</Sole>
    <Shared>0</Shared>
    <None>455126</None>
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<infoTable>
  <nameOfIssuer>CDK Global Inc</nameOfIssuer>
  <titleOfClass>COM</titleOfClass>
  <cusip>12508E101</cusip>
  <value>31802</value>
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    <sshPrnamt>968097</sshPrnamt>
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  <votingAuthority>
    <Sole>925433</Sole>
    <Shared>0</Shared>
    <None>42664</None>
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<infoTable>
  <nameOfIssuer>Cedar Fair, L.P.</nameOfIssuer>
  <titleOfClass>COM</titleOfClass>
  <cusip>150185106</cusip>
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  <shrsOrPrnAmt>
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  <votingAuthority>
    <Sole>334268</Sole>
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    <None>65371</None>
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<infoTable>
  <nameOfIssuer>Chubb Limited</nameOfIssuer>
  <titleOfClass>COM</titleOfClass>
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  <nameOfIssuer>Cinemark Holdings, Inc.</nameOfIssuer>
  <titleOfClass>COM</titleOfClass>
  <cusip>17243V102</cusip>
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    <None>32476</None>
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  <nameOfIssuer>Cisco Systems, Inc.</nameOfIssuer>
  <titleOfClass>COM</titleOfClass>
  <cusip>17275R102</cusip>
  <value>46620</value>
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    <sshPrnamt>1185948</sshPrnamt>
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    <Sole>996677</Sole>
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  <nameOfIssuer>CNA Financial Corporation</nameOfIssuer>
  <titleOfClass>COM</titleOfClass>
  <cusip>126117100</cusip>
  <value>18404</value>
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    <sshPrnamt>592901</sshPrnamt>
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    <Sole>494670</Sole>
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<infoTable>
  <nameOfIssuer>Colfax Corporation</nameOfIssuer>
  <titleOfClass>COM</titleOfClass>
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  <nameOfIssuer>Comcast Corporation Class A</nameOfIssuer>
  <titleOfClass>COM</titleOfClass>
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  <value>114274</value>
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    <None>840378</None>
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  <nameOfIssuer>Comfort Systems USA, Inc.</nameOfIssuer>
  <titleOfClass>COM</titleOfClass>
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  <nameOfIssuer>Computer Programs and Systems,</nameOfIssuer>
  <titleOfClass>COM</titleOfClass>
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  <nameOfIssuer>Constellation Brands, Inc. Cla</nameOfIssuer>
  <titleOfClass>COM</titleOfClass>
  <cusip>21036P108</cusip>
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  <nameOfIssuer>Copart, Inc.</nameOfIssuer>
  <titleOfClass>COM</titleOfClass>
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