Why do
we need zeros if they mean nothing?
The
input consists of a number of lines, each containing a positive integer n of at most 1,000 digits. The input
ends with a single line with a number -1.
For each
input number n, print a single number
obtained by removing all zeros in n.
Input file:
123
100
10304050100
-1
Output file:
123
1
13451