func_code_string: #include <bits/stdc++.h>   using namespace std;   const long long MOD = 1e9 + 7;   const long double PI = 4 * atan((long double)1);   const long long INF = 1e18;   const long long NINF = -1e18;   long long get_hash(string s) {     long long N = 1000001;     long long base[N], A = 11, MD = 1110111110111;     base[0] = 1;     for (long long i = (1); i < (N); ++i) base[i] = (base[i - 1] * A) % MD;     long long hs = 0;     for (long long i = (0); i < (s.size()); ++i) {       hs += (s[i] * base[i]);       hs %= MD;     }     return hs;   }   long long power(long long a, long long n) {     long long res = 1;     while (n) {       if (n % 2) res *= a;       a *= a;       n /= 2;     }     return res;   }   int32_t main() {     ios_base::sync_with_stdio(0);     cin.tie(0);     cout.tie(0);     ;     long long n;     cin >> n;     long long k = 1, m = 2;     while (k != n + 1) {       long long p = (k + 1) * k;       long long u = k + 1;       long long v = (k + 1) * (k + 1) * k;       cout << v - (m) / k <<   n ;       m = p;       k++;     }     return 0;   }   