#include <stdio.h>
int main(void)
{
int i ,j;
int mx[2][3] = {{1, 2, 3},{4, 5, 6} };
int my[3][2] = {{1, 5} , {5, 3}, {8, 1} };
int mz[2][2] = { 0 };
for (i = 0; i < 2; i++)
for (j = 0; j < 2; j++)
mz[i][j] = mx[i][0] * my[0][j]+ mx[i][1] * my[1][j] + mx[i][2] * my[2][j];
for (i = 0; i < 2; i++) {
for (j = 0; j < 2; j++)
printf("%3d", mz[i][j]);
putchar('\n');
}
return(0);
}