Payoda Solution #1

package project;
import java.util.*;
import java.io.*;
/**
 *
 * @author Paritosh Mehta
 */
public class Payoda {
    
    public static boolean checker(char[] x, char[] y){
        int i, j=0, flag=0;
        
        for(i=0; i<x.length; i++){
            for(; j<y.length; j++){
                if(x[i]==y[j]){
                    flag++;
                    break;
                }
            }
        }
        if (flag == x.length)
            return true;
        else 
            return false;
    }
    
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        
        String temp = sc.nextLine();
        char[] S1 = temp.toCharArray();
        temp = sc.nextLine();
        char[] S2 = temp.toCharArray();
        temp = sc.nextLine();
        char[] S3 = temp.toCharArray();
        
        if(checker(S1,S3)&&checker(S2,S3))
            System.out.println("YES");
        else
            System.out.println("NO");
    }
}