How to Get Max from different Column

Hi All, Question please

I got a data with column a, b, c
which have value(integer) in it

1,3,5
4,9,10
11,5,8
2,88,1

how can i make pentaho to get the max value of these row?

1,3,5 result 5
4,9,10 result 10
11,5,8 result 11
2,88,1 result 88

thanks in advance