Append_and_Delete.java

import java.io.*;
import java.math.*;
import java.security.*;
import java.text.*;
import java.util.*;
import java.util.concurrent.*;
import java.util.function.*;
import java.util.regex.*;
import java.util.stream.*;
import static java.util.stream.Collectors.joining;
import static java.util.stream.Collectors.toList;

class Result {

    /*
     * Complete the 'appendAndDelete' function below.
     *
     * The function is expected to return a STRING.
     * The function accepts following parameters:
     *  1. STRING s
     *  2. STRING t
     *  3. INTEGER k
     */

    public static String appendAndDelete(String s, String t, int k) {
        
        if(k >= t.length() + s.length()) return "Yes";
        int same = Math.min(t.length(), s.length());
        for(int i = 0; i< Math.min(t.length(), s.length()); i++){
            if(s.charAt(i) != t.charAt(i)){
                same = i;
                break;
            }
        }
        k -= (s.length() - same);
        k -= (t.length() - same);
        
        return (k >= 0 && k%2 == 0)? "Yes":"No";

    }

}

public class Solution {
    public static void main(String[] args) throws IOException {
        BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(System.in));
        BufferedWriter bufferedWriter = new BufferedWriter(new FileWriter(System.getenv("OUTPUT_PATH")));

        String s = bufferedReader.readLine();

        String t = bufferedReader.readLine();

        int k = Integer.parseInt(bufferedReader.readLine().trim());

        String result = Result.appendAndDelete(s, t, k);

        bufferedWriter.write(result);
        bufferedWriter.newLine();

        bufferedReader.close();
        bufferedWriter.close();
    }
}