Combine individual arrays to Single array to find max value

Here is the macro...

!num1[1] ='10'
!num2[1] ='88'
!num3[1] ='27'
!num4[1] ='27'
!num5[1] ='51'
!num6[1] ='51'

!num = object ARRAY()

!num.appendArray(!num1)
!num.appendArray(!num2)
!num.appendArray(!num3)
!num.appendArray(!num4)
!num.appendArray(!num5)
!num.appendArray(!num6)

!sortedNumber = object ARRAY()

do !number values !num
!sortedNumber.append(!number.real())
enddo

!sortedNumber.sort()

!maxValue = !sortedNumber.last()

q var !maxValue

Thank you, here my case is little different

!num[1] ='10'
!num [2]='88'
!num [3]='27'
!num [4]='27'
!num [5]='51'
!num ='51'

!sortedNumber = object ARRAY()

do !number values !num
!sortedNumber.append(!number.real())
enddo
!sortedNumber.sort()
!max[1] = !sortedNumber.first()
!max [2]= !sortedNumber.last()
q var !max