#7

#include <iostream>
#include <fstream>
using namespace std;
inf f(int n,int a[100])
{int i;
for(i=1;i<=n;i++)
if(a[i]<a[i+1])
return 1;
else
if(a[i]>a[i+1])
return 2;
else
if(a[i]==a[i+1]
return 0;
else
return -1;
}
int mainn()
{int n,a[100],i;
cin>>n;
for(i=1;i<=n;i++)
cin>>a[i];
cout<<f(n,a);
return 0;
}