#434 PerechiPrime

#include <iostream>
using namespace std;

int main(){
    int n;
    cin >> n;
    int x = 3;
    while(n>0)
    {
        int y = x+2;
        int prim = 1;

        for(int d = 3 ; d*d <= y && prim ; d += 2)
            if(x % d == 0 || y % d == 0)
                prim = 0;
        if(prim)
            cout << x << " " << y << "
", n --;
        x += 2;
    }
    return 0;
}