class Solution {
    public boolean judgeCircle(String moves) {
        int[] count = new int[4];
        
        for(char ch: moves.toCharArray()){
            if(ch == 'R') count[0]++;
            else if(ch == 'L') count[1]++;
            else if(ch == 'U') count[2]++;
            else count[3]++;
        }
        
        return count[0] - count[1] == 0 && count[2] - count[3] == 0;
    }
}