Pleazzzze solves this and help me.....

Consider the following code. If the object of a Seq class is concurrently accessed by 2 threads: (t1) and (12) and they call the Increment30 method each one time. class Seq: private int count=0; public int Increment30: count+-3 return count: Draw the trace diagram of the execution of the above code explaining the final value of the variable count where the threads are interleaved before storing the value of count