dp[i]=dp[i-1]+2*dp[i-2]
#include"stdio.h"
int main()
{
__int64 dp[1005];
int i;
int n;
dp[1]=0;
dp[2]=2;
for(i=3;i<=1000;i++)
{
dp[i]=dp[i-1]+2*dp[i-2];
dp[i]%=10000;
}
while(scanf("%d",&n)!=EOF&&n!=0)
printf("%I64d\n",dp[n]);
return 0;
}