Simply speaking, you need to know how to handle your numbers well. Given an integer, what is the largest digit present in that number?

The input file DATA2.txt will contain 5 lines, integers 0 <= N <= 1,000,000.

The output file OUT2.txt will contain 5 lines, each a single integer 0 <= n <= 9 -- the largest digit present in the corresponding input number.

1
10
102
1025
9999
		        

1
1
2
5
9