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#include<bits/stdc++.h>
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using namespace std;
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int main() {
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int A,B,C,D;
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for(A=1; A<=4; A++)
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for(B=1; B<=4; B++)
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if(A!=B) {
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for(C=1; C<=4; C++)
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if(A!=C && B!=C) {
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D=1+2+3+4-A-B-C;
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if((A==3)^(B==4) &&(B==1)^(D==4) && (C==4)^(D==3) &&(D==2)^(A==1))
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cout<<A<<B<<C<<D;
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}
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}
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return 0;
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}
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