A positive natural number, (for e.g.27) can be represented as follows:

  2+3+4+5+6+7
  8+9+10
  13+14

where every row represents a combination of consecutive natural numbers, which add up to 27.

Write a program which inputs a positive natural number N and prints the possible consecutive number combinations, which when added give N.

Test your program for the following data and some random data

SAMPLE DATA

INPUT  N = 15
OUTPUT  7 8
        1 2 3 4 5
        4 5 6