YOU SAID:
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INTO JAPANESE
qwertyuiopasdfghjklzxcvbnmqwertyuiopasdfghjklzxcvbnmqwertyuiopasdfghjklzxcvbn
BACK INTO ENGLISH
qwertyuiopasdfghjklzxcvbnm qwertyuiopasdfghjklzxcvbnm qwertyuiopasdfghjklzxcvbn
INTO JAPANESE
qwertyuiopasdfghjklzxcvbnm qwertyuiopasdfghjklzxcvbnm qwertyuiopasdfghjklzxcvbn
BACK INTO ENGLISH
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You've done this before, haven't you.