#include <bits/stdc++.h>
using namespace std;
#define endl '\n'
using ll = long long;
ll n,m,i,a[200007],r,res,j,b;
int main() {
    ios_base::sync_with_stdio(0);cin.tie(0);cout.tie(0);
    cin>>n>>m;
    for (i=1;i<=n+m-1;i++) cin>>a[i];
    for (i=1;i<=n+m-1;i++) cin>>b;
    for (i=1;i<=n;i++) {
        for (j=1;j<=m;j++) {
            res+=a[m-j];
        }
    }
    cout<<res;
    return 0;
}
| # | Verdict | Execution time | Memory | Grader output | 
|---|
| Fetching results... | 
| # | Verdict | Execution time | Memory | Grader output | 
|---|
| Fetching results... | 
| # | Verdict | Execution time | Memory | Grader output | 
|---|
| Fetching results... | 
| # | Verdict | Execution time | Memory | Grader output | 
|---|
| Fetching results... | 
| # | Verdict | Execution time | Memory | Grader output | 
|---|
| Fetching results... | 
| # | Verdict | Execution time | Memory | Grader output | 
|---|
| Fetching results... | 
| # | Verdict | Execution time | Memory | Grader output | 
|---|
| Fetching results... |