Problem
Given two strings, concatenate the second to the end of the first and print the result.
Input format
Input
input.txt
- Two lines, each with a string (up to 50 characters each)
Output format
Output
output.txt
- The concatenated string
Example
input
hello world
output
helloworld
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Sample cases (from the problem)
Sample Case 1
Input
hello world
Expected output
helloworld
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