#include <stdio.h>

void func3()
{
  int i = 11;
  printf("\t\t\t[in func3] i = %d\n", i);
}

void func2()
{
  int i = 7;
  printf("\t\t[in func2] i = %d\n", i);
  func3();
  printf("\t\t[back in func2] i = %d\n", i);
}

void func1()
{
  int i = 5;
  printf("\t[in func1] i = %d\n", i);
  func2();
  printf("\t[back in func1] i = %d\n", i);
}

int main(int argc, const char *argv[])
{
  int i = 3;
  printf("[in main] i = %d\n", i);
  func1();
  printf("[back in main] i = %d\n", i);
  return 0;
}