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