The number in the first line,

There are two numbers in the second line.

There are three numbers in the third row.

The fifteenth line has fifteen numbers and is a arithmetic progression with a tolerance of 1. Display the number of 1+2+3+4+ ...+14+15 =120-* *120,

The first number in the fifteenth line is -23+ 104=8 1, and the last number is -23+ 1 19=96, so

The sum of the absolute values of all the numbers in the fifteenth line: {(81+96) x [(96-81)1]}/2 =1416. I hope it is helpful to you.