Floyds Triangle
Print Floyd's triangle filled with the counting numbers.
Input format
One line with a single integer N (the size of the pattern).
Output format
Print Floyd's triangle of N rows: fill the rows with the counting numbers 1, 2, 3, ... left to right, row i holding i numbers.
Constraints
- Values fit in a 64-bit signed integer
- Trailing whitespace and a trailing newline are ignored by the judge
Read from stdin, write to stdout. Sample cases below show the exact format.
Sample cases
Example 1
Input
4Expected output
1
2 3
4 5 6
7 8 9 10Example 2
Input
5Expected output
1
2 3
4 5 6
7 8 9 10
11 12 13 14 15