func_code_string: #include <bits/stdc++.h>   using namespace std;   long long int dx[] = {0, 0, -1, 1, -1, -1, 1, 1};   long long int dy[] = {1, -1, 0, 0, 1, -1, -1, 1};   using namespace std;   int main() {     long long int n, p;     cin >> n >> p;     vector<bool> box(n, 0);     vector<pair<long long int, long long int>> ppl(p);     for (auto& i : ppl) cin >> i.first >> i.second;     bool res = 1;     for (int i = 0; i < n; ++i) {       cout << res;       res = !res;     }     cout << endl;     return 0;   }   