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    <link:label id="lab_cmpr_FinancialCovenantTypeAxis_8BB13F789B92CD62417FD5F3860C6576_terseLabel_en-US" xlink:label="lab_cmpr_FinancialCovenantTypeAxis_8BB13F789B92CD62417FD5F3860C6576" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Financial Covenant, Type [Axis]</link:label>
    <link:label id="lab_cmpr_FinancialCovenantTypeAxis_8BB13F789B92CD62417FD5F3860C6576_label_en-US" xlink:label="lab_cmpr_FinancialCovenantTypeAxis_8BB13F789B92CD62417FD5F3860C6576" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Financial Covenant, Type [Axis]</link:label>
    <link:label id="lab_cmpr_FinancialCovenantTypeAxis_8BB13F789B92CD62417FD5F3860C6576_documentation_en-US" xlink:label="lab_cmpr_FinancialCovenantTypeAxis_8BB13F789B92CD62417FD5F3860C6576" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Our credit agreement contains financial covenants calculated on a trailing twelve month basis.</link:label>
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    <link:label id="lab_cmpr_FinancialCovenantTypeDomain_F00D00EB9E62245FAD82D5F3860CD14D_label_en-US" xlink:label="lab_cmpr_FinancialCovenantTypeDomain_F00D00EB9E62245FAD82D5F3860CD14D" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Financial Covenant, Type [Domain]</link:label>
    <link:label id="lab_cmpr_FinancialCovenantTypeDomain_F00D00EB9E62245FAD82D5F3860CD14D_documentation_en-US" xlink:label="lab_cmpr_FinancialCovenantTypeDomain_F00D00EB9E62245FAD82D5F3860CD14D" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">[Domain] for Our credit agreement contains financial covenants calculated on a trailing twelve month basis.</link:label>
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    <link:label id="lab_cmpr_ConsolidatedLeverageRatioDomain_872C9726ABAD26725E6AD5F3860DF441_label_en-US" xlink:label="lab_cmpr_ConsolidatedLeverageRatioDomain_872C9726ABAD26725E6AD5F3860DF441" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Consolidated Leverage Ratio [Domain]</link:label>
    <link:label id="lab_cmpr_ConsolidatedLeverageRatioDomain_872C9726ABAD26725E6AD5F3860DF441_documentation_en-US" xlink:label="lab_cmpr_ConsolidatedLeverageRatioDomain_872C9726ABAD26725E6AD5F3860DF441" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Consolidated Leverage Ratio [Domain]</link:label>
    <link:loc xlink:href="cmpr-20200430.xsd#cmpr_ConsolidatedLeverageRatioDomain" xlink:label="loc_cmpr_ConsolidatedLeverageRatioDomain_872C9726ABAD26725E6AD5F3860DF441" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cmpr_ConsolidatedLeverageRatioDomain_872C9726ABAD26725E6AD5F3860DF441" xlink:to="lab_cmpr_ConsolidatedLeverageRatioDomain_872C9726ABAD26725E6AD5F3860DF441" xlink:type="arc" />
    <link:label id="lab_cmpr_SeniorSecuredLeverageRatioDomain_2B7DFE9BE1D6E89B3BABD5F3860D4250_terseLabel_en-US" xlink:label="lab_cmpr_SeniorSecuredLeverageRatioDomain_2B7DFE9BE1D6E89B3BABD5F3860D4250" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Senior Secured Leverage Ratio [Domain]</link:label>
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    <link:label id="lab_cmpr_SeniorSecuredLeverageRatioDomain_2B7DFE9BE1D6E89B3BABD5F3860D4250_documentation_en-US" xlink:label="lab_cmpr_SeniorSecuredLeverageRatioDomain_2B7DFE9BE1D6E89B3BABD5F3860D4250" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Senior Secured Leverage Ratio [Domain]</link:label>
    <link:loc xlink:href="cmpr-20200430.xsd#cmpr_SeniorSecuredLeverageRatioDomain" xlink:label="loc_cmpr_SeniorSecuredLeverageRatioDomain_2B7DFE9BE1D6E89B3BABD5F3860D4250" xlink:type="locator" />
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    <link:label id="lab_cmpr_InterestCoverageRatioDomain_F26D409C308A98A067E9D5F3860E19F1_label_en-US" xlink:label="lab_cmpr_InterestCoverageRatioDomain_F26D409C308A98A067E9D5F3860E19F1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Interest Coverage Ratio [Domain]</link:label>
    <link:label id="lab_cmpr_InterestCoverageRatioDomain_F26D409C308A98A067E9D5F3860E19F1_documentation_en-US" xlink:label="lab_cmpr_InterestCoverageRatioDomain_F26D409C308A98A067E9D5F3860E19F1" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Interest Coverage Ratio [Domain]</link:label>
    <link:loc xlink:href="cmpr-20200430.xsd#cmpr_InterestCoverageRatioDomain" xlink:label="loc_cmpr_InterestCoverageRatioDomain_F26D409C308A98A067E9D5F3860E19F1" xlink:type="locator" />
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    <link:label id="lab_us-gaap_DebtInstrumentRedemptionPeriodAxis_44019763C5D9D2F40EDFD5F3860EBEAA_label_en-US" xlink:label="lab_us-gaap_DebtInstrumentRedemptionPeriodAxis_44019763C5D9D2F40EDFD5F3860EBEAA" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Debt Instrument, Redemption, Period [Axis]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DebtInstrumentRedemptionPeriodAxis" xlink:label="loc_us-gaap_DebtInstrumentRedemptionPeriodAxis_44019763C5D9D2F40EDFD5F3860EBEAA" xlink:type="locator" />
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    <link:label id="lab_us-gaap_DebtInstrumentRedemptionPeriodDomain_9519339F7417C21A2E6DD5F3860ECF6D_label_en-US" xlink:label="lab_us-gaap_DebtInstrumentRedemptionPeriodDomain_9519339F7417C21A2E6DD5F3860ECF6D" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Debt Instrument, Redemption, Period [Domain]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DebtInstrumentRedemptionPeriodDomain" xlink:label="loc_us-gaap_DebtInstrumentRedemptionPeriodDomain_9519339F7417C21A2E6DD5F3860ECF6D" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DebtInstrumentRedemptionPeriodDomain_9519339F7417C21A2E6DD5F3860ECF6D" xlink:to="lab_us-gaap_DebtInstrumentRedemptionPeriodDomain_9519339F7417C21A2E6DD5F3860ECF6D" xlink:type="arc" />
    <link:label id="lab_us-gaap_DebtInstrumentRedemptionPeriodOneMember_D5BAA64BE39FEFD7BC1FD5F3860F9B67_terseLabel_en-US" xlink:label="lab_us-gaap_DebtInstrumentRedemptionPeriodOneMember_D5BAA64BE39FEFD7BC1FD5F3860F9B67" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Redemption Any Time Prior to April 1, 2018</link:label>
    <link:label id="lab_us-gaap_DebtInstrumentRedemptionPeriodOneMember_D5BAA64BE39FEFD7BC1FD5F3860F9B67_label_en-US" xlink:label="lab_us-gaap_DebtInstrumentRedemptionPeriodOneMember_D5BAA64BE39FEFD7BC1FD5F3860F9B67" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Debt Instrument, Redemption, Period One [Member]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DebtInstrumentRedemptionPeriodOneMember" xlink:label="loc_us-gaap_DebtInstrumentRedemptionPeriodOneMember_D5BAA64BE39FEFD7BC1FD5F3860F9B67" xlink:type="locator" />
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    <link:label id="lab_us-gaap_DebtInstrumentRedemptionPeriodTwoMember_94E23055A7028F61D159D5F3860F0A8E_label_en-US" xlink:label="lab_us-gaap_DebtInstrumentRedemptionPeriodTwoMember_94E23055A7028F61D159D5F3860F0A8E" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Debt Instrument, Redemption, Period Two [Member]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DebtInstrumentRedemptionPeriodTwoMember" xlink:label="loc_us-gaap_DebtInstrumentRedemptionPeriodTwoMember_94E23055A7028F61D159D5F3860F0A8E" xlink:type="locator" />
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