URI 1142 Solution

#include <iostream>

using namespace std;

int main()

{

    int N,count=0,lvl=0;

    cin>>N;

    for(int i=1;lvl<N;i++)

    {

        cout<<i<<" ";

        count++;

        if(count==3)

        {

            cout<<"PUM"<<endl;

            count=0;

            i++;

            lvl++;

        }

    }

    return 0;

}