Judging Delay

You have been recently hired as a developer in CodeChef. Your first mission is to implement a feature that will determine the number of submissions that were judged late in a contest. There are $N$ submissions, numbered $1$ through $N$. For each valid $i$, the $i$-th submission was submitted at time $S_i$ and judged at time $J_i$ (in minutes). Submitting and judging both take zero time. Please de