# data[].attributes.body
section A

# data[].attributes.body
NO.4

# data[].attributes.body
NO.3

# data[].attributes.body
NO.2

INSERTION -  adds an element at the beginning of the list
DELETION - Deletes a n element at the beginning of the list
DISPLAY - Display the complete list
SEARCH - searches an element using the given key

# data[].attributes.body
NO.1

# data[].attributes.body
1.D
2.B
3.C
4.D
5.B
6.A
7.D
8.C
9.A
10.D
11.C
12.B
13.A
14.B
15.C
16.A
17.B
18.D
19.B
20.B