Negative Base Conversion

Though, First time it may be a surprising fact that, "NEGATIVE BASE!!!", But it really exists. :)
Here goes it.Click Here for details.

NegaTernary(-3) Base conversion python implementation:

def negaternary(i):
    digits = []
    while i != 0:
        i, remainder = divmod(i, -3)
        if remainder < 0:
            i, remainder = i + 1, remainder + 3
        digits.insert(0, str (remainder))
    return ''.join(digits)

And Here is NegaBinary(-2) Base conversion in C:

#include<stdio.h>
int main()
{
	char a[100];
	int num,temp;

	while(~scanf("%d",&num))
	{
	while(num!=0)
	{
		temp=num%(-2);
		num/=(-2);
        if(temp < 0)
		{
			num+=1;
			temp+=2;
		}
		printf("%d ",temp);
	}
	puts("");
	}

	return 0;
}