#include <bits/stdc++.h>   using namespace std;   int main() {     long long n, x;     cin >> n;     long long b = n, i(0), c(0);     for (int i = n + 1;; i++) {       b = i;       if (b < 0) b *= -1;       while (b != 0) {         x = b % 10;         if (x == 8) {           c = 1;           break;         }         b /= 10;       }       if (c == 1) {         cout << i - n << endl;         return 0;       }     }     return 0;   }   