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#line 5 "ClockWalk.cpp"
#include <iostream>
#include <string>
#include <vector>
#include <sstream>

using namespace std;

class ClockWalk {
public:
	int finalPosition(string flips) {

	int clock=0;

	for(int i=1;i<=(int)flips.size();i++){
		if(flips[i-1]=='h'){
			clock += i;
		}else{
			clock -= i;
		}
		//cout << clock << endl;
	}

	if(clock%12==0) return 12;

	return ((clock%12)+12)%12;
	}
	
// BEGIN CUT HERE
	public:
	void run_test(int Case) { if ((Case == -1) || (Case == 0)) test_case_0(); if ((Case == -1) || (Case == 1)) test_case_1(); if ((Case == -1) || (Case == 2)) test_case_2(); if ((Case == -1) || (Case == 3)) test_case_3(); if ((Case == -1) || (Case == 4)) test_case_4(); }
	private:
	template <typename T> string print_array(const vector<T> &V) { ostringstream os; os << "{ "; for (typename vector<T>::const_iterator iter = V.begin(); iter != V.end(); ++iter) os << '\"' << *iter << "\","; os << " }"; return os.str(); }
	void verify_case(int Case, const int &Expected, const int &Received) { cerr << "Test Case #" << Case << "..."; if (Expected == Received) cerr << "PASSED" << endl; else { cerr << "FAILED" << endl; cerr << "\tExpected: \"" << Expected << '\"' << endl; cerr << "\tReceived: \"" << Received << '\"' << endl; } }
	void test_case_0() { string Arg0 = "hhthh"; int Arg1 = 9; verify_case(0, Arg1, finalPosition(Arg0)); }
	void test_case_1() { string Arg0 = "hhtht"; int Arg1 = 11; verify_case(1, Arg1, finalPosition(Arg0)); }
	void test_case_2() { string Arg0 = "hthth"; int Arg1 = 3; verify_case(2, Arg1, finalPosition(Arg0)); }
	void test_case_3() { string Arg0 = "hthhhhh"; int Arg1 = 12; verify_case(3, Arg1, finalPosition(Arg0)); }
	void test_case_4() { string Arg0 = "hthhthtththhtttthttthhhthtttthh"; int Arg1 = 6; verify_case(4, Arg1, finalPosition(Arg0)); }

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};

// BEGIN CUT HERE
int main() {
	ClockWalk ___test;
	___test.run_test(-1);
}
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