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  1. import java.util.Scanner;
  2.  
  3. class main {
  4. 	public static void main(String args[]){
  5. 		Scanner sc = new Scanner(System.in);
  6. 		int n=sc.nextInt();
  7. 		int m=n;
  8. 		sc.nextLine();
  9. 		String x=sc.nextLine();
  10. 		x=x+x+x+x+x+x+x+x+x+x+x+x;
  11. 		String arr[]=new String[90];
  12. 		String arr1[]=x.split("");
  13. 		arr=arr1;
  14. 		for(int i=0;i<n;i++){
  15. 			if(arr[i].compareTo("4")==0){
  16. 				arr[i]="3";
  17. 				arr[m++]="2";
  18. 				arr[m++]="2";
  19. 			}
  20. 			else if(arr[i].compareTo("6")==0){
  21. 				arr[i]="5";
  22. 				arr[m++]="2";
  23. 				arr[m++]="3";
  24. 			}
  25. 			else if(arr[i].compareTo("8")==0){
  26. 				arr[i]="7";
  27. 				arr[m++]="2";
  28. 				arr[m++]="2";
  29. 				arr[m++]="2";
  30. 			}
  31. 			else if(arr[i].compareTo("9")==0){
  32. 				arr[i]="7";
  33. 				arr[m++]="2";
  34. 				arr[m++]="2";
  35. 				arr[m++]="2";
  36. 				arr[m++]="3";
  37. 				arr[m++]="3";
  38.  
  39. 			}
  40. 		}
  41. 		String ans="";
  42. 		for(int j=7;j>1;j--){
  43. 			String c=String.valueOf(j);
  44. 			for(int i=0;i<m;i++){
  45. 				if(arr[i].compareTo(c)==0){
  46. 					ans=ans+arr[i];
  47. 				}
  48. 			}
  49. 		}
  50. 		System.out.println(ans);
  51. 	}
  52. }
  53.  
Success #stdin #stdout 0.14s 321280KB
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https://ideone.com/552SwZ
language:
Java (12.0.1)
created:
7 years ago
visibility:
public

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