#include <bits/stdc++.h>
using namespace std;
#define int long long
 
signed main() {
    int n, m;
    cin >> n >> m;
 
    map<int, vector<pair<int,int>>> mp;
 
    for(int i = 0; i < n; i++) {
        for(int j = 0; j < m; j++) {
            int x;
            cin >> x;
            mp[x].push_back({i, j});
        }
    }
 
    int ans = 0;
 
    for(auto &[val, v] : mp) {
        int k = v.size();
 
        for(int i = 0; i < k; i++) {
            for(int j = i + 1; j < k; j++) {
                ans += abs(v[i].first - v[j].first)
                     + abs(v[i].second - v[j].second);
            }
        }
    }
 
    cout << ans << '\n';
}

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MyA0CjEgMSAyIDIKMiAxIDEgMgoyIDIgMSAxCg==

3 4
1 1 2 2
2 1 1 2
2 2 1 1