s=0

= 0 before operation

After k operation = 1

The second operation

s=4

K = 1

After k operation =2

The third operation

s= 10

= 2 before operation

After k operation =3

The fourth operation

s= 18

= 3 before operation

After k operation =4

The fifth operation

s=28

= 4 before operation

After k operation =5

The sixth operation

s=40

= 5 before operation

K after operation =6

The seventh operation

s=54

= 6 before operation

After k operation =7

The eighth operation

s=70

= 7 before operation

After k operation =8

The ninth operation

s=88

= 8 before operation

After k operation =9

Operation 10

s= 108

Before operation = 9

After k operation = 10

The operation conditions of 1 1 times are not met, so the operation is not performed. Written by the program. I don't know if the question is right with you, but it just came in.