#include <stdio.h>
int dp[1001];
int top_down(int n) {
if (n==1) return 1;
if (n==2) return 3;
if(dp[n]!=-1) return dp[n];
dp[n]=(top_down(n-1)+2*top_down(n-2))%10007;
return dp[n];
}
int main() {
int n;
scanf("%d",&n);
for(int i=0; i<=n; i++) {
dp[i]=-1;
}
printf("%d",top_down(n));
return 0;
}
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