public static int countingValleys(int steps, String path) {
// Write your code here
    int step =0;
    int count = 0;
    for(int i = 0; i < path.length(); i++){
        if(path.charAt(i) == 'U'){
            step++;
        }else if(path.charAt(i) == 'D'){
            if(step == 0){
               count++; 
            }
            step--;
        }
    }
    return count;
}