There some several non-negative integers (unsigned 32bit integer), return the largest number combined by them.
Each different number would be divided by space.
Test cases could contain several result number and problem input would be divided by endl.
Please note that each of the results of test cases could cause the overflow of integer.
The input is several lines with several non-negative integers (unsigned 32bit integer).
The output is the largest number combined by the line of input.