In the text editor type in PRINT "HELLO WORLD" Now click on the Direct button in the lower left to go back to the command prompt looking screen. Here, type RUN and the carriage return. This will run your program, and should write the text HELLO WORLD to the screen. From the code, print is the command for writing text to the screen, and you need the quotes to make the message a string.
3そうだね プレイ済み