//#define _GLIBCXX_DEBUG #include "bits/stdc++.h" using namespace std; //------------------------------- Libraries --------------------------------// //------------------------------- Type Names -------------------------------// using i64 = int_fast64_t; using seika = string; //{akari : 1D, yukari : 2D, maki : 3D} vector template using akari = vector; template using yukari = akari>; template using maki = akari>; //{akane : ascending order, aoi : decending order} priority queue template using akane = priority_queue, greater>; template using aoi = priority_queue; //------------------------------- Dubug Functions ---------------------------// inline void print() { cout << endl; } template void print(const First &first, const Rest &... rest) { cout << first << ' '; print(rest...); } //------------------------------- Solver ------------------------------------// void solve() { int p, q, a; cin >> p >> q >> a; if (p <= q) { cout << int(1e9) << endl; return; } int ans = 0; for (i64 i = 0; i < 1e7; i += 4) { if (((100 + p) * (i + 1) / 100) < ((100 + q) * (i + 1) / 100 + a)) { ans++; } if (((100 + p) * (i + 2) / 100) < ((100 + q) * (i + 2) / 100 + a)) { ans++; } if (((100 + p) * (i + 3) / 100) < ((100 + q) * (i + 3) / 100 + a)) { ans++; } if (((100 + p) * (i + 4) / 100) < ((100 + q) * (i + 4) / 100 + a)) { ans++; } } cout << ans << endl; } int main() { solve(); return 0; }