#include<bits/stdc++.h>
using namespace std;
int a[200][200];
void calc(int i,int j,int x,int y)
{
   // if();
}
int main()
{
    int n;
    cin>>n;
    int x1,y1,x2,y2;
    cin>>x1>>y1>>x2>>y2;
    if(abs(x1-x2)%2==1)
    {cout<<"Impossible"<<endl;
     goto label;
    }
    else if(abs(y1-y2)%2==0 && abs(x1-x2)%4!=0)
    {
      cout<<"Impossible"<<endl;
     goto label;  
    }
    else if(abs(y1-y2)%2!=0 && (abs(x1-x2)-2)%4!=0)
    {
        cout<<"Impossible"<<endl;
     goto label;
    }
    label:
    {}
     
}