Text Corrector

Im wanting to make a program that helps me and others with permissions on a minecraft server,

I only need help on the text corrector like where it changes the original text that is in richtextbox1 and adds what you wrote into the maskedtextbox1 into richtextbox2, here is a screenshot



this is what i want it to do

Detects text in MaskedTextBox1
Detects text in RichTextBox1
Pastes text that is in MaskedTextbox1 in front of text in RichTextBox1
Results show up in RichTextBox2

I didn't quite get you. What the code below does is if the user entered something in MaskTextBox1 and RichTextBox1, the RichTextBox2's text is going to be MaskedTextBox1 and then RichTextBox1's text