#include <bits/stdc++.h>
namespace chtholly {
inline int read() {
  int x = 0, f = 1;
  char c = getchar();
  for (; !isdigit(c); c = getchar()) f ^= c == '-';
  for (; isdigit(c); c = getchar()) x = (x << 3) + (x << 1) + (c ^ '0');
  return f ? x : -x;
}
template <typename mitsuha>
inline bool read(mitsuha &x) {
  x = 0;
  int f = 1;
  char c = getchar();
  for (; !isdigit(c) && ~c; c = getchar()) f ^= c == '-';
  if (!~c) return 0;
  for (; isdigit(c); c = getchar()) x = (x << 3) + (x << 1) + (c ^ '0');
  return x = f ? x : -x, 1;
}
template <typename mitsuha>
inline int write(mitsuha x) {
  if (!x) return 0 & putchar(48);
  if (x < 0) x = -x, putchar('-');
  int bit[20], i, p = 0;
  for (; x; x /= 10) bit[++p] = x % 10;
  for (i = p; i; --i) putchar(bit[i] + 48);
  return 0;
}
inline char fuhao() {
  char c = getchar();
  for (; isspace(c); c = getchar())
    ;
  return c;
}
}  // namespace chtholly
using namespace chtholly;
using namespace std;
const int yuzu = 1e6;
char c[yuzu | 10];
int n;
int judge() {
  int rem = 0, i;
  for (i = 1; i <= n; ++i) rem = (rem * 10 + c[i] - 48) % 7;
  return !rem;
}
int main() {
  scanf("%s", c + 1);
  n = strlen(c + 1);
  for (; !judge();) {
    random_shuffle(c + 1, c + 1 + n);
    if (c[1] == 48)
      for (int i = 2; i <= n; ++i)
        if (c[i] ^ 48) {
          swap(c[1], c[i]);
          break;
        }
  }
  puts(c + 1);
}
