// demonstrates program stack, needs to be traced
// Mikhail Nesterenko
// 2/13/2013

// three example functions
void a();
void b();
void c();

int main(){
  char m='m';
  a();
}

void a(){
  char a='a';
  b();
  c();
}

void b(){
  char b='b';
}

void c(){
  char c='c';
}