#line 1 "/workspaces/compro/lib/template.hpp"

#line 1 "/workspaces/compro/lib/io/vector.hpp"
#include <iostream>
#include <vector>

#ifndef IO_VECTOR
#define IO_VECTOR

template <class T> std::ostream &operator<<(std::ostream &out, const std::vector<T> &v) {
  int size = v.size();
  for (int i = 0; i < size; i++) {
    std::cout << v[i];
    if (i != size - 1)
      std::cout << " ";
  }
  return out;
}

template <class T> std::istream &operator>>(std::istream &in, std::vector<T> &v) {
  for (auto &el : v) {
    std::cin >> el;
  }
  return in;
}

#endif
#line 4 "/workspaces/compro/lib/template.hpp"
#include <bits/stdc++.h>
#define REP(i, n) for (int i = 0; i < n; i++)
#define FOR(i, m, n) for (int i = m; i < n; i++)
#define ALL(v) (v).begin(), (v).end()
#define coutd(n) cout << fixed << setprecision(n)
#define ll long long int
#define vl vector<ll>
#define vi vector<int>
#define MM << " " <<

using namespace std;

template <class T> void chmin(T &a, T b) {
  if (a > b)
    a = b;
}

template <class T> void chmax(T &a, T b) {
  if (a < b)
    a = b;
}

// 重複を消す。計算量はO(NlogN)
template <class T> void unique(std::vector<T> &v) {
  std::sort(v.begin(), v.end());
  v.erase(std::unique(v.begin(), v.end()), v.end());
}

#line 2 "main.cpp"

int f(int v) {
  switch (v) {
  case 0:
    return 6;
  case 1:
    return 2;
  case 2:
    return 5;
  case 3:
    return 5;
  case 4:
    return 4;
  case 5:
    return 5;
  case 6:
    return 6;
  case 7:
    return 4;
  case 8:
    return 7;
  case 9:
    return 6;
  default:
    return 1;
  }
}

void solve(string P, string N) {
  if (N == "0") {
    cout << P << endl;
    return;
  }
  int p = 0;
  int len = P.length();
  REP(i, len) {
    if (P[i] == '-')
      p += 1;
    else
      p += f(P[i] - '0');
  }

  if (N.length() <= 2) {
    int num = (N[0] - '0');
    if (N.length() == 2) {
      num *= 10;
      num += (N[1] - '0');
    }
    num--;
    REP(i, num) {
      int next = 0;
      while (p > 0) {
        next += f(p % 10);
        p /= 10;
      }
      p = next;
    }
    cout << p << endl;
    return;
  }

  while (p != f(p)) {
    int next = 0;
    while (p > 0) {
      next += f(p % 10);
      p /= 10;
    }
    p = next;
  }

  cout << p << endl;
  return;

  // TODO: edit here
}

// generated by online-judge-template-generator v4.7.1 (https://github.com/online-judge-tools/template-generator)
int main() {
  string P, N;
  std::cin >> P >> N;
  solve(P, N);
  return 0;
}