Given two integers (a and b), get their sum:
There will be one line with two integers given, a and b, separated by spaces.
You should return the integer sum of a and b, sum.
#cf_span(class=[tex-font-style-underline], body=[Constraints]):
- 1, 000, 000, 000 ≤ a ≤ 1, 000, 000, 000
- 1, 000, 000, 000 ≤ b ≤ 1, 000, 000, 000
- 2, 000, 000, 000 ≤ sum ≤ 2, 000, 000, 000
## Input
There will be one line with two integers given, a and b, separated by spaces.
## Output
You should return the integer sum of a and b, sum.
[samples]
## Note
#cf_span(class=[tex-font-style-underline], body=[Constraints]): - 1, 000, 000, 000 ≤ a ≤ 1, 000, 000, 000 - 1, 000, 000, 000 ≤ b ≤ 1, 000, 000, 000 - 2, 000, 000, 000 ≤ sum ≤ 2, 000, 000, 000
**Definitions**
Let $ S \in \Sigma^n $ be a string of length $ n $, where $ \Sigma = \{a, b, \dots, z\} $ is the set of lowercase English letters.
**Constraints**
1. $ 1 \le n \le 10^7 $
2. Each character in $ S $ is in $ \Sigma $
**Objective**
Find the lexicographically smallest permutation of $ S $.