Infer the star-printing rule from the sample output and reproduce the pattern for a given N between 2 and 100.
Look at the sample input and output, work out the rule for printing stars, then print the stars for the given NNN by that same rule.
The first line contains an integer NNN (2≤N≤1002 \le N \le 1002≤N≤100).
Print the stars according to the rule you worked out. Trailing spaces on a line are ignored when judging.