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Can you work out this math problem in the third grade of primary school?
Happy new year, the new representative is 2 178.

Analysis: If there are still four digits after multiplying by four, Le is 1 or 2, but if any number is multiplied by four and the mantissa cannot be 1, Le is 2 and the new one is 8. In order to keep new =8, fast can only be equal to 1, and the mantissa after year *4+3 is 1.