#include <iostream>
#include <string>
#include <iomanip>
#include <sstream>
using namespace std;

class Formatter
{
public:
    Formatter(int w): width {w}
    {}
    string adjust_left(string const & s) const
    {
        ostringstream oss;
        oss << setw(width) << std::left << s;
        return oss.str();
    }
    string center(string const & s) const
    {
        ostringstream oss;
        int pre { (width - s.length())/2 };
        int post { pre + s.length() };
        if ( pre + post != width )
            ++post;
        oss << std::left << setw(pre) << ' ' << setw(post) << s;
        return oss.str();
    }
    string adjust_right(string const & s) const
    {
        ostringstream oss;
        oss << std::right << setw(width) << s;
        return oss.str();
    }
private:
    int width;
};



int main()
{
    Formatter fmt{35};
    cout << '|' << fmt.adjust_left("LEFT")     << "|\n"
         << '|' << fmt.center("CENTER") << "|\n"
         << '|' << fmt.adjust_right("RIGHT")   << '|' << endl;
    /* Skriver ut enligt nedan:
|LEFT                               |
|              CENTER               |
|                              RIGHT|
*/
}