public char[] stringCompresssion(char[] s) {
		StringBuffer ss = new StringBuffer();
		ss.append(s[0]);
		int count = 1;
		for (int i = 1; i < s.length; i++) {
			if (s[i] == s[i - 1]) {
				count++;
			} else {
				ss.append(count);
				ss.append(s[i]);
				count = 1;
			}
		}
		ss.append(count);
		if(ss.length()>=s.length){
			return s;
		}
		return ss.toString().toCharArray();
	}