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

void main()
{
  auto s = readln.chomp;
  auto r = iota(1 << (s.length - 1)).map!(i => calc_s(s, i)).array;
  writeln(calc_h(r));
}

string calc_s(string s, int n)
{
  string r = "";
  while (s.length > 1) {
    if ((n & 1) == 0) {
      r ~= s.front;
      s = s[1..$];
    } else {
      r ~= s.back;
      s = s[0..$-1];
    }
    n >>= 1;
  }
  return r ~ s;
}

int calc_h(string[] r)
{
  bool[string] h;
  foreach (s; r) h[s] = true;
  return h.length.to!int;
}