#include <bits/stdc++.h>
using namespace std;


int main() {
    ios_base::sync_with_stdio(false);
    int n = 0;
    cin >> n;

    int ile7 = 0;
    while (n > 17) {
        ++ile7;
        n -= 7;
    }
    int r = n;

    if (r == 0) {
        for (int i = 0; i < ile7; ++i)
            cout << 8;
    }
    else {
        if (r == 17) {
            cout << 200;
        }
        if (r == 16) {
            cout << 188;
        }
        if (r == 15) {
            cout << 108;
        }
        if (r == 14) {
            cout << 88;
        }
        if (r == 13) {
            cout << 68;
        }
        if (r == 12) {
            cout << 28;
        }
        if (r == 11) {
            cout << 20;
        }
        if (r == 10) {
            cout << 22;
        }
        if (r == 9) {
            cout << 18;
        }
        if (r == 8) {
            cout << 10;
        }
        if (r == 7) {
            cout << 8;
        }
        if (r == 6) {
            cout << 0;
        }
        if (r == 5) {
            cout << 2;
        }
        if (r == 4) {
            cout << 4;
        }
        if (r == 3) {
            cout << 7;
        }
        if (r == 2) {
            cout << 1;
        }
        if (r == 1) {
            cout << "NIE";
        }
    }

    for (int i = 0; i < ile7; ++i)
        cout << 8;
}