#include <iostream.h>
struct my_exception { };
struct your_exception { };
void put_line (char *s, int i) {
  cout << s << i << endl;
}
void p(int i) {
  put_line ("Entering P:", i);
  switch (i)
  {
    case 1:
      put_line ("Case 1 in P:" ,i);
      throw my_exception();
    case 2:
      put_line ("Case 2 in P:", i);
      throw your_exception();
  }
  put_line("Leaving P:", i);
}
void q(int i) {
  put_line ("Entering Q:", i);
  try {
    switch (i) {
      case 1:
        put_line ("Case 1 in Q:", i);
        p(i+1);
        break;
      case 2:
        put_line ("Case 2 in Q:", i);
        p(i-1);
        break;
      case 3:
        put_line ("Case 3 in Q:", i);
        p(i-2);
        break;
    }
    put_line("Leaving Q:", i);
  }
  catch (my_exception &e) {
    put_line("my_exception in Case 2 of Q:", i);
  }
  catch (your_exception & e) {
     put_line("your_exception in P:", i);
  }
}
void main() {
  int i;
  try {
    for (i=1; i<=3; i++)
      q(i);
    put_line("Leaving main:", i);
  }
  catch (my_exception &e) {
    put_line ("my_exception in Main:", i);
  }
}