#include <iostream>
using namespace std;
int f(int n){
    if(n ==1)return 1;
    if(n ==2)return 2;
    if(n ==3)return 4;
    return f(n-1)+f(n-2)+f(n-3);
}
int main(void){
    while( true){
        int n;
        cin>>n;
        if(n==0)break;
 
    // Your code here!

        cout << (f(n) /3650 )+1 << endl; 
  }
}
