//

 #include <iostream>

 #include <cstring>

 #include <cstdio>

 using namespace std;

 struct Matrix

 {

     int v[][];

 };

 int n;

 Matrix matrix_mul(Matrix a,Matrix b)

 {

     Matrix c;

     for(int i =  ; i <  ; i++)

     {

         for(int j =  ; j <  ; j++)

         {

             c.v[i][j] =  ;

             for(int k =  ; k <  ; k++)

                 c.v[i][j]=(c.v[i][j]+a.v[i][k]*b.v[k][j])%;

         }

     }

     return c;

 }

 int matrix_mi()

 {

         Matrix p,t ;

         p.v[][] = p.v[][] = p.v[][] =  ;

         p.v[][] = ;

         t.v[][] = t.v[][] =  ;//t是单位向量

         t.v[][] = t.v[][] =  ;

         while(n)

         {

             if(n&)//奇数

                 t = matrix_mul(t,p);

             n = n>> ;

             p = matrix_mul(p,p);

         }

         return t.v[][] ;

 }

 int main()

 {

     while(scanf("%d",&n)!=EOF&&n!=-)

     {

         if(n ==  || n == )

         {

             cout<<n<<endl;

             continue;

         }

         int ans = matrix_mi();

         cout<<ans<<endl;

     }

     return ;

 }