package aaa;

import java.util.Scanner;

public class FUNC {
	public static int func1(int n)
	{
		int i;
		if(n<=1) return 0;
		if(n==2) return 1;
		for(i=2;i<n/2+1;i++)
		{
			if(n%i==0)
				return 0;
		}
		return 1;
	}
	public static int func2(char[] arr)
	{
		int res=0,num,i;
		for(i=0;i<arr.length;i++)
		{
			if(arr[i]>='0'&&arr[i]<='9')
			{
				num = arr[i]-'0';
				if(func1(num)==1)
				{
					res = res*10;
					res+= num;
				}
			}
		}
		return res;
	}
	public static void main(String[] args) {
		// TODO Auto-generated method stub
		char[][] arr=new char[5][5];
		char[] temp = new char[5];
		int[] res = new int[5];
		int i,j;
		Scanner input = new Scanner(System.in);
		System.out.println("enter 25 chars...");
		for(i=0;i<arr.length;i++)
		{
			System.out.println("Enter 5 chars:");
			for(j=0;j<arr[0].length;j++)
				arr[i][j] = input.next().charAt(0);
		}
		for(i=0;i<arr.length;i++)
		{
			for(j=0;j<arr[i].length;j++)
			{
				temp[j] = arr[i][j];
			}
			res[i] = func2(temp);
		}
		for(i=0;i<res.length;i++)
			System.out.println(res[i]);
	}

}