/* -*- coding: utf-8 -*-
 *
 * 1156.cc:  No.1156 Nada Picnic 2 - yukicoder
 */

#include<cstdio>
#include<cstdlib>
#include<cstring>
#include<cmath>
#include<iostream>
#include<string>
#include<vector>
#include<map>
#include<set>
#include<stack>
#include<list>
#include<queue>
#include<deque>
#include<algorithm>
#include<numeric>
#include<utility>
#include<complex>
#include<functional>
 
using namespace std;

/* constant */

const char ss[3][3][16] = {
  { "012", "345", "1621" },
  { "0012", "3456", "78129" },
  { "012345", "63578", "139439" }
};

/* typedef */

/* global variables */

int ps[10];

/* subroutines */

inline int s2i(const char s[], int ps[]) {
  int sum = 0;
  for (int i = 0; s[i]; i++)
    sum = sum * 10 + ps[s[i] - '0'];
  return sum;
}

int fukumen(const char s0[], const char s1[], const char s2[]) {
  for (int i = 0; i < 10; i++) ps[i] = i;

  do {
    if (ps[s0[0] - '0'] != 0 && ps[s1[0] - '0'] != 0 && ps[s2[0] - '0'] != 0) {
      int a0 = s2i(s0, ps), a1 = s2i(s1, ps), a2 = s2i(s2, ps);
      if (a0 + a1 == a2) return a2;
    }
  } while (next_permutation(ps, ps + 10));
  return 0;
}

/* main */

int main() {
  int n;
  scanf("%d", &n);
  n--;

  int a = fukumen(ss[n][0], ss[n][1], ss[n][2]);
  printf("%d\n", a);
  return 0;
}