String Concatenation

You are given two strings, S1 and S2, provided on two separate lines. Your task is to output the concatenation of these two strings, i.e. \( S1 + S2 \).

This problem tests your ability to handle string manipulation and basic input/output operations. Make sure that you read the input from standard input (stdin) and write your output to standard output (stdout).

inputFormat

The input consists of two lines:

• The first line contains the string S1.
• The second line contains the string S2.

outputFormat

Output the concatenated string, which is the result of appending S2 to S1.

Hello
World

HelloWorld