#include <library.h>

void swap_if(int & x, int & y)  // if x <= y, leave them alone, do nothing
                                // if x > y, swap them
{ if (x > y)
  { int temp = x;
    x = y;
    y = temp; } }

void main()
{
  int A[10];
  ifstream fin;
  fin.open("data");
  if (fin.fail())
  { cout << "Can't find file\n";
    exit(1); }
  fin >> A[0];
  fin >> A[1];
  fin >> A[2];
  fin >> A[3];
  fin >> A[4];
  fin >> A[5];
  fin >> A[6];
  fin >> A[7];
  fin >> A[8];
  fin >> A[9];
  if (fin.fail())
  { cout << "bad data or not enough data_\n";
    exit(1); }
  fin.close();

  swap_if(A[0], A[1]); swap_if(A[1], A[2]); swap_if(A[2], A[3]); swap_if(A[3], A[4]); swap_if(A[4], A[5]); swap_if(A[5], A[6]); swap_if(A[6], A[7]); swap_if(A[7], A[8]); swap_if(A[8], A[9]);
  swap_if(A[0], A[1]); swap_if(A[1], A[2]); swap_if(A[2], A[3]); swap_if(A[3], A[4]); swap_if(A[4], A[5]); swap_if(A[5], A[6]); swap_if(A[6], A[7]); swap_if(A[7], A[8]);
  swap_if(A[0], A[1]); swap_if(A[1], A[2]); swap_if(A[2], A[3]); swap_if(A[3], A[4]); swap_if(A[4], A[5]); swap_if(A[5], A[6]); swap_if(A[6], A[7]);
  swap_if(A[0], A[1]); swap_if(A[1], A[2]); swap_if(A[2], A[3]); swap_if(A[3], A[4]); swap_if(A[4], A[5]); swap_if(A[5], A[6]);
  swap_if(A[0], A[1]); swap_if(A[1], A[2]); swap_if(A[2], A[3]); swap_if(A[3], A[4]); swap_if(A[4], A[5]);
  swap_if(A[0], A[1]); swap_if(A[1], A[2]); swap_if(A[2], A[3]); swap_if(A[3], A[4]);
  swap_if(A[0], A[1]); swap_if(A[1], A[2]); swap_if(A[2], A[3]);
  swap_if(A[0], A[1]); swap_if(A[1], A[2]);
  swap_if(A[0], A[1]);

  cout << A[0] << " ";
  cout << A[1] << " ";
  cout << A[2] << " ";
  cout << A[3] << " ";
  cout << A[4] << " ";
  cout << A[5] << " ";
  cout << A[6] << " ";
  cout << A[7] << " ";
  cout << A[8] << " ";
  cout << A[9] << " ";
  cout << "\n"; }