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Artifact 3a5fb18ce90cdda643aece911bff49d917ca34ac


#include <iostream>
#include <sstream>
#include <iomanip>
#include <vector>
#include <string>
#include <map>
#include <set>
#include <algorithm>
#include <numeric>
#include <iterator>
#include <functional>
#include <complex>
#include <queue>
#include <stack>
#include <cmath>
#include <cassert>
#include <cstring>
using namespace std;
typedef long long LL;
typedef complex<double> CMP;

class TripleStrings { public:
	int getMinimumOperations(string init, string goal) 
	{
		for(int i=0; i<=init.size(); ++i)
			if( init.substr(i, init.size()-i) == goal.substr(0, init.size()-i) )
				return 2*i;
		assert(false);
		return -1;
	}
};

// BEGIN CUT HERE
#include <ctime>
double start_time; string timer()
 { ostringstream os; os << " (" << int((clock()-start_time)/CLOCKS_PER_SEC*1000) << " msec)"; return os.str(); }
template<typename T> ostream& operator<<(ostream& os, const vector<T>& v)
 { os << "{ ";
   for(typename vector<T>::const_iterator it=v.begin(); it!=v.end(); ++it)
   os << '\"' << *it << '\"' << (it+1==v.end() ? "" : ", "); os << " }"; return os; }
void verify_case(const int& Expected, const int& Received) {
 bool ok = (Expected == Received);
 if(ok) cerr << "PASSED" << timer() << endl;  else { cerr << "FAILED" << timer() << endl;
 cerr << "\to: \"" << Expected << '\"' << endl << "\tx: \"" << Received << '\"' << endl; } }
#define CASE(N) {cerr << "Test Case #" << N << "..." << flush; start_time=clock();
#define END	 verify_case(_, TripleStrings().getMinimumOperations(init, goal));}
int main(){

CASE(0)
	string init = "ooxxox"; 
	string goal = "xoxoxo"; 
	int _ = 6; 
END
CASE(1)
	string init = "oooxxoo"; 
	string goal = "oooxxoo"; 
	int _ = 0; 
END
CASE(2)
	string init = "ox"; 
	string goal = "xo"; 
	int _ = 2; 
END
CASE(3)
	string init = "ooxxooxx"; 
	string goal = "xxoxoxoo"; 
	int _ = 12; 
END
CASE(4)
	string init = "oxxoxxoooxooooxxxoo"; 
	string goal = "oxooooxxxooooxoxxxo"; 
	int _ = 16; 
END
CASE(5)
	string init = "xxxoxoxxooxooxoxooo"; 
	string goal = "oxxooxxooxxoxoxooxo"; 
	int _ = 36; 
END
CASE(6)
	string init = "oxoxoxoxoxoxoxoxoxoxoxoxoxoxoxoxoxoxoxoxoxoxoxoxox"; 
	string goal = "oooooooooooooooooooooooooxxxxxxxxxxxxxxxxxxxxxxxxx"; 
	int _ = -1; 
END
CASE(7)
	string init = "o"; 
	string goal = "o"; 
	int _ = 0; 
END
CASE(8)
	string init = "ox"; 
	string goal = "xo"; 
	int _ = 2; 
END

}
// END CUT HERE