int countingValleys(int steps, string path) {
            int down=0,in_valleys=0,up=0,count=0 ;
            for(int i=0;i<path.size();i++){
                if(path[i]=='U') up++;
                if(path[i]=='D') down++;
                if(down-up>0&&in_valleys==0){
                    count++;
                    in_valleys++;
                }
                if(down-up==0&&in_valleys!=0){
                    in_valleys =0;
                }
            }
            return count;
        }