I'm having trouble getting data from my payload, but specifically I want just a few pieces of data
["18,57,0,0.000000,0,6569,0.000000,19,55,0,0,0,0,0\n","18,57,0,0.000000,0,6570,0.000000,19,55,0,0,0,0,0\n","18,57,0,0.000000,0,6572,0.000000,19,55,0,0,0,0,0\n","18,57,0,0.000000,0,6573,0.000000,19,55,0,0,0,0,0\n","18,57,0,0.000000,0,6575,0.000000,19,55,0,0,0,0,0\n"]
I just want the value of 18 which is subject to change after a certain period of time or maybe the next, at some point this data will become more data and more, and I would like to know how to extract it.