import java.util.Arrays; import java.util.Scanner; public class Main{ public static void main(String[] args) { Main main=new Main(); main.run(); } void run() { Scanner sc=new Scanner(System.in); int n=sc.nextInt(); int[] dp= new int[10101]; Arrays.fill(dp,0); int sum=0; dp[0]=1; for(int i=0;i=0;j--) { if(j+buf<=10100) { dp[j+buf]=dp[j]; } } } if(sum%2==1 || dp[sum/2]==0) { System.out.println("impossible"); }else { System.out.println("possible"); } } }