Concatenate Two Numbers

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Problem Description

Given two numbers A and B. Concatenate the two numbers and print it.

Problem Constraints

1 <= A, B <= 10⁴

Input Format

There are two input lines
The first line has a single integer A.
The second line has a single integer B.

Output Format

Print in a single line the concatenated number.

Example Input

Input 1:-

4
5

Input 2:-

16
2

Example Output

Output 1:-

45

Input 2:-

162

Example Explanation

Explanation 1:-

Concatenating 4 and 5 will be 45.

Explanation 2:-

Concatenation 16 and 2 is 162.