Problem:
Score : 200 points

Problem Statement

Let w be a string consisting of lowercase letters.
We will call w beautiful if the following condition is satisfied:

Each lowercase letter of the English alphabet occurs even number of times in w.

You are given the string w. Determine if w is beautiful.

Constraints

1 \leq |w| \leq 100

w consists of lowercase letters (a-z).

Input

The input is given from Standard Input in the following format:

w

Output

Print Yes if w is beautiful. Print No otherwise.

Sample Input 1

abaccaba

Sample Output 1

Yes

a occurs four times, b occurs twice, c occurs twice and the other letters occur zero times.

Sample Input 2

hthth

Sample Output 2

No

Solution in C (GCC 5.4.1) (judge verdict: Wrong Answer)

#include <stdio.h>
#include <string.h>
int main(void)
{
    int a[50],b,m,n,i,j=0,k=0,l=0,p=0,x=0,y=0,z=0;
    char s[1000],ss[1000],c;

    scanf("%s",s);
    b=strlen(s);

    for(i=0; i<b; i++) a[s[i]-'a']++; 
    for(i=0; i<26; i++){
        if(a[j]%2!=0){ printf("No\n"); return 0;}
    }
    printf("Yes\n");
    return 0;
}