#include <iostream>
#include <sstream>
#include <string>
#include <vector>
using namespace std;
 
typedef std::wstring str_type;
 
std::vector< str_type > tokenize( const str_type & content )
{
    str_type s = content;
    std::wstringstream ss( s );
    std::vector< str_type > substr;
 
    while( std::getline( ss , s , L' ') )
    {
        substr.push_back( s );
    }
 
    return substr;
}
 
int main() {
	// your code goes here
	return 0;
}

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