read from file  40 A
 40 A
 read from file  45 E
 40 A 45 E
 read from file   6 G
  6 G 40 A 45 E
 read from file   8 H
  6 G  8 H 40 A 45 E
 read from file  34 I
  6 G  8 H 34 I 40 A 45 E
 read from file  12 L
  6 G  8 H 12 L 34 I 40 A 45 E
 read from file   9 N
  6 G  8 H  9 N 12 L 34 I 40 A 45 E
 read from file  20 O
  6 G  8 H  9 N 12 L 20 O 34 I 40 A 45 E
 read from file  15 S
  6 G  8 H  9 N 12 L 15 S 20 O 34 I 40 A 45 E
 read from file   2 V
  2 V  6 G  8 H  9 N 12 L 15 S 20 O 34 I 40 A 45 E
 read from file   3 W
  2 V  3 W  6 G  8 H  9 N 12 L 15 S 20 O 34 I 40 A 45 E

The Info in the nodes is:
  2 V  3 W  6 G  8 H  9 N 12 L 15 S 20 O 34 I 40 A 45 E
The new list:  5 X  6 G  8 H  9 N 12 L 15 S 20 O 34 I 40 A 45 E

The new list:  8 H  9 N 11 X 12 L 15 S 20 O 34 I 40 A 45 E

The new list: 11 X 12 L 15 S 17 X 20 O 34 I 40 A 45 E

The new list: 15 S 17 X 20 O 23 X 34 I 40 A 45 E

The new list: 20 O 23 X 32 X 34 I 40 A 45 E

The new list: 32 X 34 I 40 A 43 X 45 E

The new list: 40 A 43 X 45 E 66 X

The new list: 45 E 66 X 83 X

The new list: 83 X111 X

The new list:194 X