public class Grille{ public static void main(String[] args) { int n = Integer.parseInt(args[0]); for(int i=0;i<=2*n;i++){ if(i%2==0){ for(int j=0;j<=2*n;j++){ if(j%2==0){ System.out.print("+"); } else { System.out.print("-"); } } } else { for(int j=0;j<=2*n;j++){ if(j%2==0){ System.out.print("|"); } else { System.out.print(" "); } } } System.out.println(""); } } }