sum_2

Given a list of ints, return the sum of the first 2 elements in the list. If the list length is less than 2, just sum up the elements that exist, returning 0 if the list is length 0.

This exercise was taken from codingbat.com and has been adapted for the Python language. There are many great programming exercises there, but the majority are created for Java.

Test 1

Input:

[1, 2, 3]

Output:

3

Test 2

Input:

[1, 1]

Output:

2

Test 3

Input:

[1, 1, 1, 1]

Output:

2

Test 4

Input:

[1, 2]

Output:

3

Test 5

Input:

[1]

Output:

1

Test 6

Input:

[]

Output:

0

Test 7

Input:

[4, 5, 6]

Output:

9

Test 8

Input:

[4]

Output:

4