#include<fstream.h>
int main()
   {
   ifstream fin("buline.in");
   ofstream fout("buline.out");
   int a[16000],b[16000],N,i,j,k,l,max,s[16000],P,L;
   fin>>N>>"\n";
   i=1;
   while(i<=N)
      {
      fin>>a[i];
      fin>>b[i]>>"\n";
      if(b[i]==0)a[i]=-a[i];
      a[N+i]=a[i];
      i=i+1;
      }
   i=N;
   while(i>=1)
      {
      j=1;
      while(j<=N)
	{
	 k=1;
	 s[j]=0;
	 while(k<=i)
	    {
	    s[j]=s[j]+a[k];
	    k=k+1;
	    }
	 max=s[1];
	 l=2;
	 P=1;
	 L=i;
	 while(l<=N)
	    {
	    if(s[l]>max){
			  s[l]=max;
			  P=l;
			  L=i;
			 }
	    l=l+1;
	    }
	 j=j+1;
	}
      i=i-1;
      }
   fout<<max;
   fout<<P;
   fout<<L;
   fin.close();
   fout.close();
return 0;
   }