#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; 
}