func_code_string: #include <bits/stdc++.h>   using namespace std;   const int MAXN = 1e6 + 10;   const long long inf = 1e15;   const int mod = 1e6;   void faster() {     ios_base::sync_with_stdio(false);     cin.tie(NULL);   }   const long long N = 3e5 + 10;   int n, m;   long long a[N];   int main() {     faster();     cin >> n;     if (n % 10 < 10 - (n % 10))       cout << n - n % 10 << endl;     else       cout << n + (10 - (n % 10)) << endl;   }   