#include <iostream>
using namespace std;

int main() {

    // int student_marks[6][5] = {
    // {1,2,3,4,5},
    // {6,7,8,9,10},
    // {11,12,13,14,15}
    // };

    int student_marks[6][5];
    int count=1;

    for(int student=0; student<6 ;student++)
        {
            for(int subject=0;subject<5;subject++)
                {
                    student_marks[student][subject] = count;
                    count++;
                }
        }

     for(int student=0; student<6 ;student++)
        {
            for(int subject=0;subject<5;subject++)
                {
                    cout<<student_marks[student][subject]<<" ";
                }
            cout<<endl;
        }

       cout<<endl<<endl;
       
       for(int subject=0;subject<5;subject++)
        {
           for(int student=0; student<6 ;student++)
                {
                    cout<<student_marks[student][subject]<<" ";
                }
            cout<<endl;
        }
    
    return 0;
}