func_code_string: #include <bits/stdc++.h>   #pragma comment(linker,  /STACK:36777216 )   using namespace std;   const int INF = ~(1 << 31);   const double EPS = 1;   const double PI = 3.141592653589793;   int main() {     int n, m;     cin >> n >> m;     if (m == 3 && n >= 5) {       cout <<  -1 n ;       return 0;     }     for (int i = 0; i < m; i++) cout << i <<     << i * i + 10000000 <<   n ;     for (int i = 0; i < n - m; i++) cout << i <<     << -i * i - 10000000 <<   n ;     return 0;   }   