Repeat Characters

Given a string, your task is to double every character in the string. For example, the word "hello" becomes "hheelllloo". This problem tests your ability to manipulate strings and process input/output from standard streams.

You will be given a single line of input containing a string. The output should be the transformed string where each character from the input is repeated exactly twice.

inputFormat

The input consists of a single line containing a string. This string may include letters, digits, symbols, and spaces. The string can also be empty.

outputFormat

Output the transformed string where each individual character is repeated twice. The output should be printed on standard output.

hello

hheelllloo