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... a.
Inside the small boat was Wan Youkong, who was playing with the Rubik’s Cube with a serious expression.
This time, he was playing the 4 x 4 Rubik’s Cube and not the previous 3 x3 one.
“What? The 4 x 4 Rubik’s Cube isn’t difficult. It’s much easier than the 3 x 3 one.” Wan Youxi muttered.
Not far away, a speedboat approached quickly with an ear-piercing rumble.
On the speedboat were two capable middle-aged men. They were originally chatting and laughing, ...
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