#include<iostream>
using namespace std;
int main ()
{
int n,i,br,br1;
cin>>n;
br=0;
br1=0;
long long a,b,sum,sum1,del;
for(i=0;i<n-1;i++)
{
cin>>a;
if(i!=0)
{
if(a>b)
{
if(br==0)
{
	br=2;
	sum=a+b;
}
else
{
	br++;
	sum=sum+a;
}
}
else
{
	if(br>br1)
	{
		br1=br;
		br=0;
		sum1=sum;
		sum=0;
	}
	br=0;
	sum=0;
}

}
b=a;
}
if(br>br1)
	{
		br1=br;
		br=0;
		sum1=sum;
		sum=0;
	}
cout<<br1<<endl;
for(sum=1;sum<=sum1/2;sum++)
{
	if(sum1%sum==0)del=sum;
}
cout<<del<<endl;
return 0;
}
