#include using namespace std; int main() { int P, Q, A; { cin >> P >> Q >> A; } if (P <= Q) { int res = 1e9; for (int x = 1; x < 200; ++x) { res -= (x + Q * x / 100 + A) <= (x + P * x / 100); } cout << res << endl; } else { int x = A * 100 / (P - Q) + 200; int res = 0; while (x > 0) { res += (x + Q * x / 100 + A) > (x + P * x / 100); --x; } cout << res << endl; } }