func_code_string: #include <bits/stdc++.h>   using namespace std;   long long maxm = -1e18;   long long minm = 1e18;   bool isP(long long n) {     if (n == 2LL) return 1;     if (n % 2LL == 0LL)       return 0;     else if (n == 1)       return 0;     for (long long i = 3; i * i <= n; ++i)       if (n % i == 0) return 0;     return 1;   }   void solve() {     int n;     cin >> n;     string res;     while (n > 0) {       if (n == 3) {         res = res +  7 ;         n -= 3;       } else {         res = res +  1 ;         n -= 2;       }     }     string result;     for (int i = res.length() - 1; i >= 0; i--) {       result = result + res[i];     }     cout << result << endl;   }   int main() {     ios_base::sync_with_stdio(0);     cin.tie(0);     cout.tie(0);     long long t = 1;     while (t--) {       solve();     }     return 0;   }   