#include <stdio.h>
#define BASE 3
int main1()
{
int a = 12;
scanf ("%d", &a);
int s[10]= {0};
int i = 0;
while (a)
{
s[i++] = a % 2;
a /= 2;
}
for (i = i-1; i >= 0; i--)
{
printf ("%d", s[i]);
}
printf ("\n");
return 0;
}
void tran(int n)
{
if (n == 0)
return;
// printf ("%d", n%2);
tran(n/BASE);
printf ("%d", n%BASE);
return;
}
int main()
{
int a = 12;
tran(12);
printf ("\n");
return 0;
}