#include <bits/stdc++.h>
using namespace std;
using ll = long long;
using vll = vector<ll>;
using vvl = vector<vll>;
using pll = pair<ll,ll>;
using vpl = vector<pll>;
using vvp = vector<vpl>;
#define f first
#define s second
#define pb push_back
#define all(v) v.begin(),v.end()
long long min_total_length(std::vector<int> r, std::vector<int> b) {
ll ans=0;
while(r.size()<b.size()){r.pb(r.back());}
reverse(all(b));
while(b.size()<r.size()){b.pb(b.back());}
reverse(all(b));
for(ll i = 0; i < max(r.size(),b.size());++i){
ans += abs(b[i]-r[i]);
}
return ans;
}
// int main() {
// int n, m;
// assert(2 == scanf("%d %d", &n, &m));
// vector<int> r(n), b(m);
// for(int i = 0; i < n; i++)
// assert(1 == scanf("%d", &r[i]));
// for(int i = 0; i < m; i++)
// assert(1 == scanf("%d", &b[i]));
// long long res = min_total_length(r, b);
// printf("%lld\n", res);
// return 0;
// }
