Problem
Remove all even numbers from an array and print the remaining values.
Input (from file `input.txt`):
- First line: integer N (1 ≤ N ≤ 100)
- Second line: N integers
Output (to file `output.txt`):
- All odd numbers, space-separated (order preserved)
Example
input.txt:
5
1 2 3 4 5
output.txt:
1 3 5
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