public static String gameOfThrones(String s) {
    // Write your code here
        int[] CHAR = new int[26];
        int oddCount = 0;
        for(int i=0;i<s.length();i++) {
            CHAR[s.charAt(i)-97]++; // ascii of a is 97
        }
        for(int i=0;i<26;i++){
            oddCount += CHAR[i]%2;
        }
        if(s.length()%2==0 && oddCount == 0) return "YES";
        if(s.length()%2!=0 && oddCount == 1) return "YES";
        return "NO";
    }