This is about 5 minutes job; freelancer.com doesn't allow me to bid less than $30, though.
Enjoy.
#include <stdio.h>
int main() {
unsigned int dim;
unsigned int i, row, column;
unsigned int tempsum;
unsigned int m0, m1;
/* Input matrices dimension */
printf("Please enter matrices dimension: ");
scanf("%d", &dim);
/* Calculate the product */
for (row = 1; row <= dim; row++) {
for (column = 1; column <= dim; column++) {
/* Calculate (row, column) element of the product */
tempsum = 0;
for (i = 1; i <= dim; i++) {
m0 = (row + 1) * (i + 1); /* Element in M0 at (row, i) */
m1 = i + column; /* Element in M1 at (i, column) */
tempsum += m0 * m1;
}
/* Print an element */
printf("%d\t", tempsum);
}
/* Go to the next row */
printf("\n");
}
}