#include "library.h"

void padded_print(int n)
{ if (n>=1 && n<=9)
    print("   ");
  else if (n>=10 && n<=99)
    print("  "); 
  else if (n>=100 && n<=999)
    print(" ");  
  print(n); }

void one_table_line(int from, int to, int step)
{ if (from>to)
    return;
  padded_print(from);
  one_table_line(from+step, to, step); }

void times_table(int from, int to)
{ if (from>to)
    return;
  one_table_line(from, from*12, from);
  new_line();
  times_table(from+1, to); }

void main()
{ times_table(1, 12); }