/*
TASK:sum
LANG:C++
*/
#include<iostream>
using namespace std;
int main()
{
    int N,i,j,br=0,s,zn=1,sbor=0,N1;
    cin>>N;

for(i=2;i<N;i++)
{
 sbor=0;                
 N1=N/i; 
 zn=1;
 
 for(j=1;j<i;j++)
 {
 sbor+=N1+ zn*j;
 zn=-zn;
 }
 
 sbor=sbor+N1;
 if(sbor==N)br++;
 
}



cout<<br<<endl;




    return 0;
}

