Problem K
Ternary
Input: Standard Input

Output: Standard Output

You will be given a decimal number. You will have to convert it to its ternary (Base 3) equivalent.

Input

The input file contains at most 100 lines of inputs. Each line contains a non-negative decimal integer N(N<1000000001). Input is terminated by a line containing a negative value. This line should not be processed.

 

Output

For each line of input produce one line of output. This line contains the ternary equivalent of decimal value N.

Sample Input                               Output for Sample Input

10 100 1000 -1

101 10201 1101001

---

#include<stdio.h>
void Base3(int n) {
    if(n == 0)    return ;
    Base3(n/3);
    printf("%d", n%3);
}
int main() {
    int n;
    while(scanf("%d", &n) == 1 && n >= 0) {
        if(n == 0)    {puts("0");continue;}
        Base3(n);
        puts("");
    }
    return 0;
}