#include <cmath>
#include <cstdio>
#include <vector>
#include <iostream>
#include <algorithm>
using namespace std;
/*int c=1;
void calc(int n,int a,int b,int x,int y)
{
    //int d=0;
    //int c=1;
    if(a>=n || b>=n)
        return;
    if(a==x && b==y)
    {
     c=0;
     return;
    }
    
    int ul=calc(n,a-2,b-1,x,y);
    int ur=calc(n,a-2,b+1,x,y);
    int r=calc(n,a,b+2,x,y);
    int lr=calc(n,a+2,b+1,x,y);
    int ll=calc(n,a+2,b-1,x,y);
    int l=calc(n,a,b-2,x,y);
    
    calc(n,a-2,b-1,x,y);
    calc(n,a-2,b+1,x,y);
    calc(n,a,b+2,x,y);
    calc(n,a+2,b+1,x,y);
    calc(n,a+2,b-1,x,y);
    calc(n,a,b-2,x,y);
    if(c!=0)
    cout<<"Impossible";
    else
        cout<<"4\n"<<"p";
}
*/
int main() {
    /* Enter your code here. Read input from STDIN. Print output to STDOUT */   
    int n;
    int a,b,x,y;
    cin>>n;
    cin>>a>>b>>x>>y;
    //calc(n,a,b,x,y);
    cout<<"Impossible";
    return 0;
}