#include "bits/stdc++.h" using namespace std; #define int long long #define REP(i, n) for (int i = 0; i < (int)n; ++i) #define RREP(i, n) for (int i = (int)n - 1; i >= 0; --i) #define FOR(i, s, n) for (int i = s; i < (int)n; ++i) #define RFOR(i, s, n) for (int i = (int)n - 1; i >= s; --i) #define ALL(a) a.begin(), a.end() #define IN(a, x, b) (a <= x && x < b) templateinline void out(T t){cout << t << "\n";} templateinline void out(T t,Ts... ts){cout << t << " ";out(ts...);} templateinline bool CHMIN(T&a,T b){if(a > b){a = b;return true;}return false;} templateinline bool CHMAX(T&a,T b){if(a < b){a = b;return true;}return false;} constexpr int INF = 1e18; signed main(){ int N; cin >> N; vector>a(N,vector(N)); vector>>pos(N); REP(i,N){ REP(j,N){ cin >> a[i][j]; --a[i][j]; pos[a[i][j]].emplace_back(i,j); } } int ans = 0; REP(i,N){ vectorimos1(N + 1),imos2(N + 1); for(auto[x,y]:pos[i]){ ++imos1[min(N,x + y + 1)]; --imos1[N]; ++imos2[0]; --imos2[max(0ll,x - y)]; } REP(j,N){ imos1[j + 1] += imos1[j]; imos2[j + 1] += imos2[j]; } REP(j,N)imos1[j + 1] += imos1[j]; RREP(j,N)imos2[j] += imos2[j + 1]; int mi = INF,idx = -1; REP(j,N)if(CHMIN(mi,imos1[j] + imos2[j]))idx = j; REP(j,N){ auto[x,y] = pos[i][j]; ans += max(abs(idx-x),y); } } out(ans); }