how can i compare value using blynk server and nodemcu

hello everyone

i am making and project in which i am using three nodemcu from this three nodemcu 1 is operating as master and other two are operating as slave the two slaves are sending integer data to master and in master this data is compared with the value in master. I have send this integer value using blynk bridge and the values are receiving in master but i am unable to understand where should i put the comparison code in the following program

please help me
thanks