#define _CRT_SECURE_NO_WARNINGS #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #define aLL(g) (g).begin(),(g).end() #define REP(i, x, n) for(int i = x; i < n; i++) #define rep(i,n) REP(i,0,n) #define F(i,j,k) fill(i[0],i[0]+j*j,k) #define P(p) cout<<(p)< vi; typedef vector vl; typedef vector vd; typedef pair pii; typedef pair pll; typedef long long ll; int dx[] = { 0, 1, 0, -1 }; int dy[] = { -1, 0, 1, 0 }; int sttoi(std::string str) { int ret; std::stringstream ss; ss << str; ss >> ret; return ret; } bool sort_greater(const pair &a, const pair &b) { return a.second > b.second; } set se; string s; void calc(string now,string left){ if (left.empty()){ se.insert(now); return; } char c = left.front(); left.erase(left.begin(), left.begin() + 1); calc(now + c, left); left = c + left; c = left.back(); left.erase(left.end() - 1, left.end()); calc(now + c, left); } void solve() { cin >> s; int n = s.length(); calc("", s); P(se.size()); } int main() { solve(); return 0; }