#include<iostream>
#include<string>
#include<algorithm>
#include<vector>
#include<queue>
#include<map>
#include<math.h>
#include<iomanip>
#include<set>
#include<numeric>
#include<cstring>
#include<cstdio>
#include<functional>
#include<bitset>
#include<limits.h>
#include<cassert>
#include<iterator>
#include<complex>
#include<stack>
using namespace std;
#define lint long long int
/*
vector<char>al(26);
al = {'a','b','c','d','e','f','g','h','i','j','k','l','m','n','o','p','q','r','s','t','u','v','w','x','y','z'};
vector<char>AL(26);
AL = {'A','B','C','D','E','F','G','H','I','J','K','L','M','N','O','P','Q','R','S','T','U','V','W','X','Y','Z'};
*/


int main() {
	lint N;
	cin >> N;
	if (N == 0) {
		cout << 0 << endl;
	}
	else {
		vector<string>vec(10000, "**");
		lint i = 0;
		while (N != 0) {
			vec[i] = to_string(N % 7);
			N /= 7;
			i++;
		}
		reverse(vec.begin(), vec.end());
		for (int i = 0; i < 10000; i++) {
			if (vec[i] != "**") {
				cout << vec[i];
			}
		}
		cout << endl;
	}
}