jetoane

#include<fstream>
#define nmax 280001
#define inf "jetoane.in"
#define outf "jetoane.out"
using namespace std;
unsigned a[nmax];
int n,m;
int main()
{int i,j,l,k1,k2;
 unsigned x;
 ifstream f(inf);
 ofstream g(outf);
 f>>m;f>>n;
 for(i=0;i<nmax;i++) a[i]=0;
 for(i=1;i<=m;i++)
   {f>>x;a[x]=1;}
 for(i=1;i<=n;i++)
  {f>>x;a[x]+=2;}
 i=0;
 while(i<nmax&&a[i]!=3)i++;
 j=nmax-1;
 while(j>i&&a[j]!=3)j--;
 if (i>nmax) g<<"0 0 -1\n";
  else if(i==j) g<<i<<" 0 -1\n";
   else{g<<i<<' '<<j<<' ';
    k1=k2=0;
    for(l=0;l<i;l++)
      if(a[l]==1) k1++;
        else if(a[l]==2) k2++;
    for(l=j+1;l<=nmax;l++)
      if(a[l]==1) k1++;
        else if(a[l]==2) k2++;
    if(k1==k2) g<<0<<'\n';
        else if(k1>k2) g<<1<<'\n';
            else g<<2<<'\n';
     }
 g.close();
 return 0;
}