tijie

#include <iostream>
using namespace std;
int main(){
int n,a[1005]={1,1};
cin>>n;
for (int i=2;i<=n;i++){
if (i%2 == 0){
a[i] = a[i-1]+a[i/2];
}else{
a[i] = a[i-1];
}
}

cout<<a[n];

return 0;

}