Score : $200$ points
Given an integer or a decimal $X$, round it down to an integer and print the result.
Input is given from Standard Input in the following format:
Round $X$ down to an integer and print the result (as an integer).
We round down $5.90$ to an integer, $5$, and print it as an integer. Non-integer outputs such as
5.0 will be judged as incorrect.
There may be no decimal point in $X$.
Take care when handling large numbers.