#include <iostream>
using namespace std;
int main() {
const int x = 20 , y = 7 ;
int a[x][y] , b[x][y],c[x][y];
for (size_t i = 0 ; i < x ; i++){
for (size_t j = 0 ; j < y ; j++){
a[i][j] = rand() % 90 ;
cout << a[i][j] << "\t";
}
cout << endl ;
}
cout << "Введите кол. строк k:" << endl ;
int k ;
cin >> k ;
int x1 = k ;
for (size_t i = 0 ; i < x ; i++){
for(size_t j = 0 ; j < y ; j++){
b[i][j] = a[x1][j] ;
}
x1++;
}
x1 = 0 ;
for (size_t i = x-k ; i < x ; i++){
for(size_t j = 0 ; j < y ; j++){
b[i][j] = a[x1][j] ;
}
x1++;
}
for (size_t i = 0 ; i < x ; i++){
for (size_t j = 0 ; j < y ; j++){
cout << b[i][j] << "\t";
}
cout << endl ;
}
return 0;
}
