#include<iostream>
#include<cstdio>
#include<cmath>
#include<algorithm>
#include<cstring>
using namespace std;
int n;
int minfoot=0;
const int size=10005;
int a[size][3];
int main()
{
// freopen("porch.in","r",stdin);
// freopen("porch.out","w",stdout);

cin>>n;
for(int i=1;i<=n;i++)
for(int j=1;j<=2;j++)
cin>>a[i][j];

if(a[1][1]==1)

{
cout<<"Poor";
return 0;
}
int k=1;
for(int i=1;i<n;i++)
{
if(a[i+1][1]==1 && a[i+1][2]==1)
{
cout<<"Poor";
return 0;

}

if(a[i+1][k]==0)
minfoot++;
else
{
if(k==2) k=1;
if(k==1) k=2;
if(a[i][k]==1)
{
cout<<"Poor";
return 0;

}
else minfoot+=2;
}
}
cout<<minfoot;
return 0;
}