Sum with Teen Special

Background

Congcong is learning basic arithmetic operations. He discovered that some number combinations lead to unexpected "lucky" results.

Problem Description

Given two integers, $a$ and $b$, return their sum. However, "teen" values in the range $13 \dots 19$ inclusive are considered extra lucky. So, if either value is a teen, just return $19$.

Input Format

Input is given from standard input in the following format.

$a$ $b$

Output Format

Output is printed to standard output in the following format.

result

Sample

3 4

7

10 13

19

13 2

19

Sample Explanation

Sample $1$: Neither $3$ nor $4$ is a teen value, so their sum $3 + 4 = 7$ is returned. Sample $2$: $10$ is not a teen value, but $13$ is. Since one value is a teen, $19$ is returned. Sample $3$: $13$ is a teen value, and $2$ is not. Since one value is a teen, $19$ is returned.

Constraints

Time limit: $1$ second per test case. Memory limit: $1024$ KiB per test case.