#include <iostream>
using namespace std;
void temperature(int t) {
  try {
    if (t == 100)
      throw "It's at the boiling point.";
    else if (t == 0)
      throw "It reached the freezing point";
    else
      cout << "the temperature is OK..." << endl;
  } catch (int x) {
    cout << "temperature=" << x << endl;
  } catch (char const *s) {
    cout << s << endl;
  }
}
int main() {
  temperature(0);   // L1
  temperature(10);  // L2
  temperature(100); // L3
  
  return 0;
}