Task $6(2$ Marks$).$ Suppose we have two processes P$1$ and P$2$ consisting of $3$ and $5$ steps respectively, given as follows.

P$1$:

Step $1$: Read from file A

Step $2$: Write to File B

Step $3$: Write to File C

P$2$:

Step $1$: Read from File A

Step $2$: Read the time

Step $3$: Write to File B

Step $4$: Add two numbers

Step $5$: Write to File D

$1.$ After how many milliseconds will we have a race condition? $2.$ Write down a system congruences to express this fact.