Click on the calculator buttons:
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Marker writing
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Manual pencil sharpener
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Ballpoint pen
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Chalk writing on the blackboard
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Crunching paper rustling
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Throw a ballpoint pen on the table
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Ink Dipping, Pen Writing
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Tear off tape
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Remove eraser by hand
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Put ballpoint pen on paper
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Tape holder, tape over carton
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Write, press a button, Ballpoint pen machine
★★★★★