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a9e7957 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 | <instance format="XCSP3" type="CSP">
<variables>
<array id="x" size="[4]"> 0..3 </array>
<array id="d" size="[3]"> 1..3 </array>
</variables>
<constraints>
<allDifferent> x[] </allDifferent>
<allDifferent> d[] </allDifferent>
<group>
<intension> eq(%0,dist(%1,%2)) </intension>
<args> d[0] x[1] x[0] </args>
<args> d[1] x[2] x[1] </args>
<args> d[2] x[3] x[2] </args>
</group>
</constraints>
</instance>
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