XDU 1109

#include<stdio.h>
#define N 10007
#define maxn 1000005
int dp[maxn];
int main()
{
    dp[]=,dp[]=,dp[]=;
    for(int i=;i<maxn;i++)
        dp[i]=dp[i-]%N+dp[i-]%N+dp[i-]%N;
    int n;
    while(scanf("%d",&n)!=EOF)
        printf("%d\n",dp[n]%N);
}