This submission is migrated from previous version of oj.uz, which used different machine for grading. This submission may have different result if resubmitted.
#include<iostream>
using namespace std;
int main()
{
int k;
cin >> k;
cout << k + 3 << ' ' << 2 * (k + 1) << endl;
for(int i = 2; i < k + 3; i++)
cout << 1 << ' ' << i << endl;
for(int i = 2; i < k + 3; i++)
cout << i << ' ' << k + 3 << endl;
return 0;
}
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