#include <iostream>
#include <iomanip>

using namespace std;

int main() {
   
   int i{0};

   while (i <= 20) {

      cout << setw(4) << i << setw(4) << i/7  << setw(4) << i%7 << endl;

      ++i;
   }

   cout << endl << endl << endl;

   i = 0;
   while (i <= 20) {
       cout << rand() % 20 +1 << endl;
       ++i;
   }


   return 0;
}