/*
TASK:sum
LANG:C++
*/
#include<iostream.h>
int main(){
long int n,j,s,b,i;
cin>>n;b=0;s=0;
for (i=1;i<=n;i++){s=0;
for (j=i;j<=n;j++)
{s=s+j;if (s==n)b++;}}
cout<<b;cout<<endl;
return 0;
}



