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Setw command used with cout in C++

#include<iostream>
#include<conio.h>
#include<iomanip>
using namespace std;
void main()
{
    cout<<setw(9)<<"I"<<endl;
    cout<<setw(17)<<"LOVE"<<endl;
    cout<<setw(30)<<"PAKISTAN"<<endl;
    getch();
}