#define TEST_MODE true #define _CRT_SECURE_NO_WARNINGS #define _USE_MATH_DEFINES #include "bits/stdc++.h" using namespace std; #define rep(i, n) for (int i = 0; i < (int)(n); ++i) #define rep2(i, a, b) for (int i = (a); i < (int)(b); ++i) #define rrep(i, n) for (int i = (n)-1; i >= 0; --i) #define rrep2(i, a, b) for (int i = (a)-1; i >= (int)b; --i) #define range(i, a, b, c) for (int i = a; \ c > 0 ? i < b : i > b; \ i += c) #define chmax(a, b) (a = (a) < (b) ? (b) : (a)) #define chmin(a, b) (a = (a) > (b) ? (b) : (a)) using ll = long long; using ull = unsigned long long; using ld = long double; #define all(a) begin(a), end(a) #define ifnot(a) if (not(a)) #define int long long #ifdef LOCAL_ENV #if TEST_MODE == true const bool test = true; #define dump(x) cerr << #x << " = " << (x) << endl #else const bool test = false; #define dump(x) #endif #else const bool test = false; #define dump(x) #endif int dx[] = { 1, 0, -1, 0 }; int dy[] = { 0, 1, 0, -1 }; const int INF = (int)1 << 60; const ll INFL = (ll)1 << 60; ll mod_n = (int)1e9 + 7; const double eps = 1e-10; typedef long double Real; // return -1, 0, 1 int sgn(const Real &r) { return (r > eps) - (r < -eps); } int sgn(const Real &a, const Real &b) { return sgn(a - b); } //..................... const int MAX = (int)2e5 + 5; vector split(const string &str, char sep) { vector v; stringstream ss(str); string buffer; while (getline(ss, buffer, sep)) { v.push_back(buffer); } return v; } template int sum(InputIterator begin, InputIterator end) { return accumulate(begin, end, 0ll); } template T gcd(T a, T b) { T c; while (a != 0) { c = a; a = b%a; b = c; } return b; } class Solver { public: int N; string ans() { int v = N; string res; while (v > 0) { res += (char)('0' + v % 7); v /= 7; } reverse(all(res)); return res; } void solve() { cin >> N; cout << ans() << endl; } }; signed main() { srand((unsigned int)time(NULL)); cout << fixed << setprecision(20); auto ptr = new Solver(); ptr->solve(); delete ptr; //while (true) { // if (cin.eof() == true) break; // auto ptr = new Solver(); // ptr->solve(); // delete ptr; //} return 0; } // class Mycin { // bool flag = true; // public: // Mycin& operator >> (int& a) {flag = scanf("%lld", &a) != EOF; return *this;} // Mycin& operator >> (char& a) {flag = scanf("%c", &a) != EOF; return *this;} // Mycin& operator >> (string& s) {flag = (bool)(cin >> s); return *this;} // operator bool() {return flag;} // } mycin; // class Mycout { // public: // Mycout& operator << (const int& a) {printf("%lld", a); return *this;} // Mycout& operator << (const char c) {printf("%c", c); return *this;} // Mycout& operator << (const string& s) {printf("%s", s.c_str()); return *this;} // } mycout; // #define cin mycin // #define cout mycout // #define endl '\n'