Observe the arrangement of the following numbers, and then fill in the appropriate numbers: 3, - 7, 11, - 15, 19, - 23______ ，______ ． | Math enthusiast | Mathematical art

Observe the arrangement of the following numbers, and then fill in the appropriate numbers: 3, - 7, 11, - 15, 19, - 23 ，．

According to the meaning of the question, the number in this column is the absolute value of the previous number plus 4, which is equal to the absolute value of the following number, and the sign is positive and negative; 23 + 4 = 27, 27 + 4 = 31; therefore, 27, - 31 should be filled in

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