/** Topic: If the plaintext letters arranged in a matrix form according to a certain order, in another column in order to select the appropriate output ciphertext, such as using " china" as the secret key, for " this is* a book mark" row matrix as follows:* thisi* saboo* kmark* /

class\.classpath
.....\.project
.....\.settings\org.eclipse.jdt.core.prefs
.....\bin\class_info$1.class
.....\...\class_info$Button_Listener.class
.....\...\class_info$JButton_Listener.class
.....\...\class_info.class
.....\src\class_info.java
.....\.settings
.....\bin
.....\src
class

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