#include<iostream>
using namespace std;
int main()
{
 int n,br=0,a,i,pr=0,max=0,maxdel=0,s=0,j,br2=0;
 cin>>n;
 for (i=1;i<=n-1;i++)
 {cin>>a;
 if(a<=pr)
	{
	 if(a==pr)br2++;
	 if(br>max)
	 {
	  max=br;
	  for(j=s-1;j>=1;j--)
	  {
	  	if(s%j==0)
	  	{
	  		maxdel=j;
	  		break;
	  	}
	  }
	 br=0;
	 s=0;
	 }
	}
	br++;
	s=s+a;
 pr=a;
 }
 if(br>max)
	 {
	  max=br;
	  for(j=s-1;(j);j--){if(s%j==0)maxdel=j;break;} 
	 br=0;
	 s=0;
	 }
	cout<<max-br2<<endl<<maxdel<<endl;
return 0;
}
