func_code_string: #include <bits/stdc++.h>   using namespace std;   unsigned long long k, n, i, j, m;   unsigned long long v[105][105];   vector<unsigned long long> l;   int main() {     cin >> n >> m;     for (i = 1; i <= n; i++)       for (j = 1; j <= m; j++) {         cin >> v[i][j];         k = max(k, v[i][j]);       }     k++;     if (n == 1) {       cout <<  YES n ;       cout << k <<   n ;       cout << 0 <<   n ;       for (i = 1; i <= m; i++) cout << v[1][i] <<    ;       cout <<   n ;       return 0;     }     if (m == 1) {       cout <<  YES n ;       cout << k <<   n ;       for (i = 1; i <= n; i++) cout << v[i][1] <<    ;       cout <<   n ;       cout << 0 <<   n ;       return 0;     }     unsigned long long a = v[1][1] + v[2][2];     unsigned long long b = v[1][2] + v[2][1];     unsigned long long j = max(a, b) - min(a, b);     if (j == 0) j = k;     if (k > j) {       cout <<  NO n ;       return 0;     }     k = j;     unsigned long long x = 0;     l.push_back(x);     for (i = 2; i <= n; i++) {       if (v[i][1] < v[i - 1][1])         x = (x + k - v[i - 1][1] + v[i][1]) % k;       else         x = (x + v[i][1] - v[i - 1][1]) % k;       l.push_back(x);     }     for (i = 0; i < l.size(); i++) {       for (j = 1; j <= m; j++) {         if ((l[i] + v[1][j]) % k != v[i + 1][j]) {           cout <<  NO n ;           return 0;         }       }     }     cout <<  YES n ;     cout << k <<   n ;     for (i = 0; i < l.size(); i++) cout << l[i] <<    ;     cout <<   n ;     for (i = 1; i <= m; i++) cout << v[1][i] <<    ;     cout <<   n ;   }   