Problems
Remove even digits
Remove even digits
Remove all even digits from the given positive integer.
Input data
One positive integer n (n ≤ 10^18).
Output data
Print the number n with all even digits removed. If the original number n contains only even digits, print 0.
Examples
Input example #1
12345678901234
Output example #1
1357913
Input example #2
24642
Output example #2
0