YOU SAID:
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INTO JAPANESE
qwertyuiopasdfghjklzxcvbnm1234567890mnbvcxzlkjhgfdsapoiuytrewq0987654321
BACK INTO ENGLISH
qwertyuiopasdfghjklzxcvbnm1234567890mnbvcxzlkjhgfdsapoiuytrewq0987654321
INTO JAPANESE
qwertyuiopasdfghjklzxcvbnm1234567890mnbvcxzlkjhgfdsapoiuytrewq0987654321
BACK INTO ENGLISH
qwertyuiopasdfghjklzxcvbnm1234567890mnbvcxzlkjhgfdsapoiuytrewq0987654321
You've done this before, haven't you.