How to leave a message on Mao Zedong sculpture in Orange Island?

How to write a message for punching in the sculpture of Mao Zedong in Orange Island: Long hair flying, resolute look, the sculpture of young Mao Zedong's head stands tall in Orange Island, staring at the distance, as if staring at the motherland and people all the time. Pursuing the red footprint and feeling the feelings of great men, tourists look back in the way of paying tribute to great men.