#include <conio.h>

#include <clocale>

#include <iostream>

using namespace std;

int main()

{

int a[4][4];

int b[4][4];

for (int i = 0; i < 4; ++i)

{

for (int j = 0; j < 4; ++j)

{

cin >> a[i][j];

}

}

printf("\n matrix:\n");

for (int i = 0; i<4; i++)

{

for (int j = 0; j<4; j++)

printf(" a[%d][%d]=%d ", i, j, a[i][j]);

printf("\n");

}

for (int i = 0; i<4; i++)

{

for (int j = 0; j<4; j++)

b[i + 1][j] = a[i + 1][j] * a[0][0] - a[0][j] * a[i + 1][0];

}

printf("\n");

printf("New matrix:\n");

for (int i = 0; i<4; i++)

{

for (int j = 0; j<4; j++)

{

b[0][j] = a[0][j];

printf(" b[%d][%d]=%d ", i, j, b[i][j]);

}

printf("\n");

}

system("pause");

return 0;

}