#include <bits/stdc++.h> using namespace std; int main() { int n,f,w,i=0,j,e,sum=0; cin>>n>>f>>w; e=w-n*i; j=1.0*e/f; while(j>=0){ if(e%f==0){ sum=sum+1; } i=i+1; } cout<<sum; return 0; }