func_code_string: #include <bits/stdc++.h>   using namespace std;   int a[105][105], c[105], r[105];   int main() {     int n, m;     cin >> n >> m;     for (int i = 1; i <= n; i++)       for (int j = 1; j <= m; j++) cin >> a[i][j];     for (int i = 1; i <= n; i++)       for (int j = 1; j <= m; j++) {         c[j] += a[i][j];         r[i] += a[i][j];       }     int co = 0;     set<int> sc, sr;     set<int>::iterator it;     while (co <= 10) {       for (int i = 1; i <= n; i++)         if (r[i] < 0) {           if (sr.find(i) != sr.end())             sr.erase(sr.find(i));           else             sr.insert(i);           r[i] = -r[i];           for (int j = 1; j <= m; j++) c[j] -= 2 * a[i][j];           for (int j = 1; j <= m; j++) a[i][j] = -a[i][j];         }       for (int j = 1; j <= m; j++)         if (c[j] < 0) {           if (sc.find(j) != sc.end())             sc.erase(sc.find(j));           else             sc.insert(j);           c[j] = -c[j];           for (int i = 1; i <= n; i++) r[i] -= 2 * a[i][j];           for (int i = 1; i <= n; i++) a[i][j] = -a[i][j];         }       co++;     }     cout << sr.size() <<    ;     for (it = sr.begin(); it != sr.end(); it++) cout << *it <<    ;     cout << endl;     cout << sc.size() <<    ;     for (it = sc.begin(); it != sc.end(); it++) cout << *it <<    ;     return 0;   }   