49 lines
884 B
C++
49 lines
884 B
C++
#include<cstdio>
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#include<cstring>
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#include<algorithm>
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#include<functional>
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#include<iostream>
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using namespace std;
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int str[120];
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int main()
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{
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int n,i,res;
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while(scanf("%d",&n)!=EOF)
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{
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res=10;
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for(i=0;i<n;i++)
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{
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scanf("%d",&str[i]);
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if(str[i]&1==1&&res>str[i])
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res=str[i];
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}
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if(res==10){
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printf("-1\n");
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continue;
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}
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sort(str,str+n,greater<int>());
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int fir=-1,st=res;
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for(i=0;i<n;i++)
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{
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if(res==str[i]) res=-1;
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else
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{
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fir=str[i];
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break;
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}
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}
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if(fir==0) printf("-1\n");
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else
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{
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if(fir!=-1)
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printf("%d",fir);
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for( i++; i<n;i++)
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if(res==str[i])res=-1;
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else
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printf("%d",str[i]);
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printf("%d\n",st);
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}
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}
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return 0;
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}
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