func_code_string: #include <bits/stdc++.h>   using namespace std;   const int maxn = 1e5 + 5;   const int Mod = 1000000007;   const int INF = 0x3f3f3f3f;   const long long LL_INF = 0x3f3f3f3f3f3f3f3f;   const double e = exp(1);   const double PI = acos(-1);   const double ERR = 1e-10;   int main() {     long long n;     scanf( %lld , &n);     long long ans = (1LL * (1 + n) * n) / 2;     if (ans % 2 == 0)       printf( 0 n );     else       printf( 1 n );     return 0;   }   