import std.algorithm, std.container, std.conv, std.math, std.range, std.typecons, std.stdio, std.string;

auto rdsp(){return readln.splitter;}
void pick(R,T)(ref R r,ref T t){t=r.front.to!T;r.popFront;}
void readV(T...)(ref T t){auto r=rdsp;foreach(ref v;t)pick(r,v);}
void readA(T)(size_t n,ref T[]t){t=new T[](n);auto r=rdsp;foreach(ref v;t)pick(r,v);}

void main()
{
  int n, k; readV(n, k);
  int[] d; readA(k, d);

  auto b = new bool[](10);
  foreach (di; d) b[di] = true;

  auto isOK(int n)
  {
    while (n > 0) {
      if (b[n%10]) return false;
      n /= 10;
    }
    return true;
  }

  foreach (i; n..100000)
    if (isOK(i)) {
      writeln(i);
      return;
    }
}
