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

void main(){
	string s; readf("%s\n", &s);
	auto res = dfs(s).sort.uniq.array.length;
	res.writeln;
}

string[] dfs(const string s, string[] acc = [""]){
	if(s.length == 0){ return acc; }
	auto front = dfs( s[1..$], acc.map!(e => e ~ s[0]).array );
	auto back = dfs( s[0..$-1], acc.map!(e => e ~ s[$-1]).array );
	return front ~ back;
}