string balancedSums(vector<int> arr) {
    
    int sums = accumulate(arr.begin(),arr.end(),0);
    int leftSums = 0;
    
    for(int i : arr){
        if(sums-i == leftSums)
            return "YES";
        else{
            sums -= i;
            leftSums += i;
        }
    }
    
    return "NO";
}