#include <stdio.h>
void poly_multiply(unsigned *a, int n, unsigned *b, int m, unsigned *c) {
printf("n=%d m=%d\n", n, m);
for (int i = 0; i < 16; ++i) printf("a%d=%u b%d=%u\n", i, a[i], i, b[i]);
for (int i = 999990; i <= 1000000; ++i) printf("a%d=%u b%d=%u\n", i, a[i], i, b[i]);
c[0] = 0;
}