appending 50 values in a row

[Naomisaka]

Hello, I hope this is a quick fix for the pros!

I'm working in Touchdesigner and I'm trying to append all 50 values from row 0:50 from an operator 'null14' to the operator 'fifo1' each time they change.
But I only managed that it appends the value in row 0 line 0.

This is the line:
op('fifo1').appendRow(op('null14')[0,0])


I would appreciate any ideas! Thank you :)
Naomi