#include <iostream> using namespace std; int main() { int n; cin >> n; int m = n * 100; int count = 0; for (int f=1; f<100; f++) { for (int o = 1; o < 100 - f; o++) { int h = 100 - f - o; if (h >= 1&&f* 5 + o* 1 + h*0.5== m) { count++; } } } }