# include <stdio.h>

//
//  In this example, we know the values of A, B, and C, and we
//  just want to move them around so they are in order.
//
int main ( )
{
  int a = 3;
  int b = 1;
  int c = 2;
  int t;
//
//  If we want A, B, and C to be in order, we need to swap entries.
//  To do this, we need a helper variable "T" to temporarily store one value.
//
//  Here's the first swap:
//
//  A  B  C   T
//  -  -  -   -
//  3  1  2
//  3  1  2   1
//  3  3  2   1
//  1  3  2   1
//
  t = b;
  b = a;
  a = t;
//
//  Here's the second swap:
//
//  A  B  C   T
//  -  -  -   -
//  1  3  2   3
//  1  2  2   3
//  1  2  3   3 
//
  t = b;
  b = c;
  c = t;
//
//  Now A, B and C are sorted.
//
  return 0;
}