import java.util.Scanner;
public class Solution {
   public static void main(String[] args) {
      /*  Scanner sc = new Scanner(System.in);
       int n=sc.nextInt(),i_start=sc.nextInt(),j_start=sc.nextInt(),i_end=sc.nextInt(),j_end=sc.nextInt(),move=0;
       
      
       while(i_start!=i_end && j_start!=j_end)
       { if(i_start>i_end)
            {if(j_start>j_end)
                {j_start--;i_start-=2;move++;}
             else
                 {j_start++;i_start-=2;move++;}
            }
         else if(i_start<i_end)
            {if(j_start>j_end)
                {j_start--;i_start+=2;move++;}
             else
                {j_start++;i_start+=2;move++;}
            }
        else
            {if(j_start>j_end)
                  {j_start-=2;move++;} 
             else
                 {j_start+=2;move++;}
            }
        if(move==100)
            break;
       }
       if(move==100)*/
           System.out.print("Impossible\n");
      // else
        //   System.out.print(move+"\n");
    }
}