Generates a bitwise decrement number beginning with 9

This is a program of the beauty of mathematics series.

The procedure is as follows:

/* Generates a bitwise decrement number beginning with 9 */#include <stdio.h>int main (void) {    long multinum=1;    int i;    for (I=1; i<=9; i++) {        printf ("%9ld*8+%d=%ld\n", Multinum, I, Multinum * 8 + i);        Multinum = Multinum * + (i + 1);    }    return 0;}

The results of the program execution are as follows:

1*8+1=9
12*8+2=98
123*8+3=987
1234*8+4=9876
12345*8+5=98765
123456*8+6=987654
1234567*8+7=9876543
12345678*8+8=98765432
123456789*8+9=987654321

Generates a bitwise decrement number beginning with 9