Line Numbers

Given several lines of text, write a program that prints each line with its line number added in front.

The first line contains the number of lines $N$. Each of the next $N$ lines contains the contents of one line. Each line has at most 50 characters.

Print each line with its line number added in front. Line numbers start from 1 and use the format number. content — that is, the line number followed by a period, a single space, and then the original contents of the line.