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4. Insert F into C and D as shown below, then insert F into E as
shown below. Once the above steps are completed, the main
building is complete. And it can not be disassembled.
5. Slide down G into the second floor as shown below. Make sure
you hear a pop sound to confirm G has been connected correctly.
6. Connect H and I as shown below. Then connect them into A as
shown below. Make sure you hear a click sound to confirm they
are firmly connected.