import java.util.*;
public class Main{

    public static void main(String[] args){
        Scanner sc = new Scanner(System.in);
        char[] moji = sc.next().toCharArray();
        boolean flag = true;
        Arrays.sort(moji);
        int cnt = 0;
        for(int i = 0;i<moji.length-1;i++){
            if(moji[i]==moji[i+1]){
                cnt++;
            }else{
                if(cnt%2!=1){
                    flag = false;
                    break;
                }
                cnt=0;
            }
        }

        if(flag&&moji.length!=1){
            System.out.println("Yes");
        }else{
            System.out.println("No");
        }




    }
}



 import java.util.*; util.* java public class Main{

    public static void main(String[] args){
        Scanner sc = new Scanner(System.in);
        char[] moji = sc.next().toCharArray();
        boolean flag = true;
        Arrays.sort(moji);
        int cnt = 0;
        for(int i = 0;i<moji.length-1;i++){
            if(moji[i]==moji[i+1]){
                cnt++;
            }else{
                if(cnt%2!=1){
                    flag = false;
                    break;
                }
                cnt=0;
            }
        }

        if(flag&&moji.length!=1){
            System.out.println("Yes");
        }else{
            System.out.println("No");
        }




    }
} Main public static void main(String[] args){
        Scanner sc = new Scanner(System.in);
        char[] moji = sc.next().toCharArray();
        boolean flag = true;
        Arrays.sort(moji);
        int cnt = 0;
        for(int i = 0;i<moji.length-1;i++){
            if(moji[i]==moji[i+1]){
                cnt++;
            }else{
                if(cnt%2!=1){
                    flag = false;
                    break;
                }
                cnt=0;
            }
        }

        if(flag&&moji.length!=1){
            System.out.println("Yes");
        }else{
            System.out.println("No");
        }




    } main {
        Scanner sc = new Scanner(System.in);
        char[] moji = sc.next().toCharArray();
        boolean flag = true;
        Arrays.sort(moji);
        int cnt = 0;
        for(int i = 0;i<moji.length-1;i++){
            if(moji[i]==moji[i+1]){
                cnt++;
            }else{
                if(cnt%2!=1){
                    flag = false;
                    break;
                }
                cnt=0;
            }
        }

        if(flag&&moji.length!=1){
            System.out.println("Yes");
        }else{
            System.out.println("No");
        }




    } Scanner sc = new Scanner(System.in); sc new Scanner(System.in) char[] moji = sc.next().toCharArray(); moji sc.next().toCharArray() sc.next().toCharArray sc.next() sc.next sc boolean flag = true; flag true Arrays.sort(moji) Arrays.sort Arrays moji int cnt = 0; cnt 0 for(int i = 0;i<moji.length-1;i++){
            if(moji[i]==moji[i+1]){
                cnt++;
            }else{
                if(cnt%2!=1){
                    flag = false;
                    break;
                }
                cnt=0;
            }
        } int i = 0; int i = 0; i 0 i<moji.length-1 i moji.length-1 moji.length moji moji.length 1 i++ i++ i {
            if(moji[i]==moji[i+1]){
                cnt++;
            }else{
                if(cnt%2!=1){
                    flag = false;
                    break;
                }
                cnt=0;
            }
        } {
            if(moji[i]==moji[i+1]){
                cnt++;
            }else{
                if(cnt%2!=1){
                    flag = false;
                    break;
                }
                cnt=0;
            }
        } if(moji[i]==moji[i+1]){
                cnt++;
            }else{
                if(cnt%2!=1){
                    flag = false;
                    break;
                }
                cnt=0;
            } moji[i]==moji[i+1] moji[i] moji i moji[i+1] moji i+1 i 1 {
                cnt++;
            } cnt++ cnt {
                if(cnt%2!=1){
                    flag = false;
                    break;
                }
                cnt=0;
            } if(cnt%2!=1){
                    flag = false;
                    break;
                } cnt%2!=1 cnt%2 cnt 2 1 {
                    flag = false;
                    break;
                } flag = false flag false break; cnt=0 cnt 0 if(flag&&moji.length!=1){
            System.out.println("Yes");
        }else{
            System.out.println("No");
        } flag&&moji.length!=1 flag moji.length!=1 moji.length moji moji.length 1 {
            System.out.println("Yes");
        } System.out.println("Yes") System.out.println System.out System System.out "Yes" {
            System.out.println("No");
        } System.out.println("No") System.out.println System.out System System.out "No" String[] args args public class Main{

    public static void main(String[] args){
        Scanner sc = new Scanner(System.in);
        char[] moji = sc.next().toCharArray();
        boolean flag = true;
        Arrays.sort(moji);
        int cnt = 0;
        for(int i = 0;i<moji.length-1;i++){
            if(moji[i]==moji[i+1]){
                cnt++;
            }else{
                if(cnt%2!=1){
                    flag = false;
                    break;
                }
                cnt=0;
            }
        }

        if(flag&&moji.length!=1){
            System.out.println("Yes");
        }else{
            System.out.println("No");
        }




    }
} public class Main{

    public static void main(String[] args){
        Scanner sc = new Scanner(System.in);
        char[] moji = sc.next().toCharArray();
        boolean flag = true;
        Arrays.sort(moji);
        int cnt = 0;
        for(int i = 0;i<moji.length-1;i++){
            if(moji[i]==moji[i+1]){
                cnt++;
            }else{
                if(cnt%2!=1){
                    flag = false;
                    break;
                }
                cnt=0;
            }
        }

        if(flag&&moji.length!=1){
            System.out.println("Yes");
        }else{
            System.out.println("No");
        }




    }
} Main
import java.util.*;
public class Main{

    public static void main(String[] args){
        Scanner sc = new Scanner(System.in);
        char[] moji = sc.next().toCharArray();
        boolean flag = true;
        Arrays.sort(moji);
        int cnt = 0;
        for(int i = 0;i<moji.length-1;i++){
            if(moji[i]==moji[i+1]){
                cnt++;
            }else{
                if(cnt%2!=1){
                    flag = false;
                    break;
                }
                cnt=0;
            }
        }

        if(flag&&moji.length!=1){
            System.out.println("Yes");
        }else{
            System.out.println("No");
        }




    }
}




